The weight of gold that came to Solomon each year was 666 talents,

1 Kings 10:14
The weight of gold that came to Solomon each year was 666 talents,

2 Chronicles 8:18
So Hiram sent him ships captained by his servants, along with crews of experienced sailors. They went with Solomon's servants to Ophir and acquired from there 450 talents of gold, which they delivered to King Solomon.

2 Chronicles 9:12
King Solomon gave the queen of Sheba all she desired--whatever she asked--far more than she had brought the king. Then she left and returned to her own country, along with her servants.

Now the weight of gold that came to Solomon in one year was six hundred and three score and six talents of gold;