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Sixty-six trillion six hundred and sixty-six billion six hundred and sixty-six million six hundred and sixty-six thousand six hundred and sixty-six

Prime factorization of 66666666666666

2 × 3 × 11 × 239 × 4649 × 909091

Is 66666666666666 in the Fibonacci number sequence?

No.

Its nearest Fibonacci number neighbors are 44945570212853 and 72723460248141.