Numerology Meaning of #16

16 means: 

• Outspoken
• Strong-willed
• Analytical
• Research
• Study

Further, it is a Karmic number; plus, it indicates the achievement of the material power.
Bible:

• The Old Testament counts 16 prophets
• The New Testament counts 16 apostles and evangelists
• Joash reigned 16 years on Israel to Samaria

• 2 K 13,10

• Uzziah had 16 years when the people of Judah chose him as king in succession to his father Amaziah

• 2 K 14,21

• Jotham, son of Uzziah, reigned 16 years to Jerusalem

• 2 K 15,33

• Ahaz, son of Jotham, reigned sixteen years to Jerusalem

• 2 K 16,2

• 16 classes of priests were formed with the heads of the family of son of Eleazar

• 1 Ch 24,4

General:

• 16 is the number of years in inside of which the four Gospels were written, according to visions of Mary Agreda. Difference of age between the Virgin Mary and his Son Jesus, according to visions of Maria Valtorta.

The 16 petals of the Visuddha Chakra located on the front of the throat.
Ahura-Mazda, according to the Avesta, created for its people 16 places of habitation.
The Jains have 16 goddesses.

• 16 guardians of the Great Work of Templar.
• 16 geomantic figures.

In the Hindu religion, an Avatar is an extraordinary being, the miraculous incarnation of the Divine in a human form, for the well of the humanity. By definition, the Avatar has 16 particular gifts:

• The ability to materialize objects at will.
• Qualities of omniscience, omnipresence and omnipotence.
• The capacity to transmit a pure love current, inexhaustible.
• The possibility to transcend all conditions of the Karma which appears by his capacity to transform miraculously the life of a person by an act of divine will. 

Some roses of cathedrals have 16 rays.

The antiquity recognized 16 plant sacredness:

1. Catmint, plant of the vitality
2. Centaury, enchantments
3. Chelidonium, triumph
4. Mistletoe, salvation
5. Heliotrope, sincerity
6. Jusquiame, dead
7. Tongue of dog, Sympathy
8. Lily, manifestation
9. Melissa, comfort
10. Nettle, bravery
11. Periwinkle, fidelity
12. Rose, initiation
13. Sage, life
14. Serpentaria, fluid
15. Vervain, love
16. Virgo pastoris, fruitfulness

Sum of the four first odd numbers (1+3+5+7=16) which, by theosophical addition, gives 1+6=7, the sacred number.

The magic square using the first 16 numbers is associated to the Jupiter planet and has for sum 34. 

The Jupiter planet has 16 satellites.

The number 16 is used 21 times in the Bible.

The number 80 is used 16 times in the Bible.