667367104727317 has 2 divisors, whose sum is σ = 667367104727318. Its totient is φ = 667367104727316.

The previous prime is 667367104727303. The next prime is 667367104727339. The reversal of 667367104727317 is 713727401763766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 629041211521636 + 38325893205681 = 25080694^2 + 6190791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667367104727317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667367104737317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333683552363658 + 333683552363659.

It is an arithmetic number, because the mean of its divisors is an integer number (333683552363659).

Almost surely, 2^{667367104727317} is an apocalyptic number.

It is an amenable number.

667367104727317 is a deficient number, since it is larger than the sum of its proper divisors (1).

667367104727317 is an equidigital number, since it uses as much as digits as its factorization.

667367104727317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 261382464, while the sum is 67.

The spelling of 667367104727317 in words is "six hundred sixty-seven trillion, three hundred sixty-seven billion, one hundred four million, seven hundred twenty-seven thousand, three hundred seventeen".