It's often associated with the "occult" or "the devil" .....etc.
It's also often known as "The Sign of the Beast" or the "Number of the Beast"
However......it's really just a number......with some interesting properties !!!!
The sum of the squares of the 7 primes = 2^2 + 3^2 + 5^2 + 7^2 + 11^2 + 13^2 + 17^2 = 666
Note .....666 = 1^6 - 2^6 + 3^6
The sum of the numbers on a 38 pocket roulette wheel [ 1-36 and 0, 00 ] = 666........thus ......the sum of the first 36 positive integers = 666 means that it is a "trianglar number"
We can divide 123456789 into the following sums : 1 + 2 + 3 + 4 + 567 + 89 = 666 ....also.......123 + 456 + 78 + 9 = 666
Also ...... 987654321 = 9 + 87 + 6 + 543 + 21 = 666
The "Golden Ratio" number "Phi" ≈ 1.61803.... can be closely aprroximated by either:
-2sin(666°) ......or......
-2 cos (6 x 6 x 6 ° )
Summing the ASCII character set for the word "Indonesia" gives 666 [ there are numerous famous words or phrases that share this property ]
Finally - An "urban myth" ........ the Glass Pyramid associated with the Louvre in Paris supposedly contains 666 glass panes.........this was shown not to be true........the Louvre officials claim 673.....independent research suggests 698.....!!!!!