66736733673307 has 2 divisors, whose sum is σ = 66736733673308. Its totient is φ = 66736733673306.

The previous prime is 66736733673301. The next prime is 66736733673319. The reversal of 66736733673307 is 70337633763766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66736733673307 - 2⁷ = 66736733673179 is a prime.

It is not a weakly prime, because it can be changed into another prime (66736733673301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33368366836653 + 33368366836654.

It is an arithmetic number, because the mean of its divisors is an integer number (33368366836654).

Almost surely, 2^{66736733673307} is an apocalyptic number.

66736733673307 is a deficient number, since it is larger than the sum of its proper divisors (1).

66736733673307 is an equidigital number, since it uses as much as digits as its factorization.

66736733673307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756142128, while the sum is 67.

The spelling of 66736733673307 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred thirty-three million, six hundred seventy-three thousand, three hundred seven".