18068160717697 has 2 divisors, whose sum is σ = 18068160717698. Its totient is φ = 18068160717696.

The previous prime is 18068160717661. The next prime is 18068160717767. The reversal of 18068160717697 is 79671706186081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9468199777936 + 8599960939761 = 3077044^2 + 2932569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18068160717697 is a prime.

It is not a weakly prime, because it can be changed into another prime (18068160714697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9034080358848 + 9034080358849.

It is an arithmetic number, because the mean of its divisors is an integer number (9034080358849).

Almost surely, 2^{18068160717697} is an apocalyptic number.

It is an amenable number.

18068160717697 is a deficient number, since it is larger than the sum of its proper divisors (1).

18068160717697 is an equidigital number, since it uses as much as digits as its factorization.

18068160717697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42674688, while the sum is 67.

The spelling of 18068160717697 in words is "eighteen trillion, sixty-eight billion, one hundred sixty million, seven hundred seventeen thousand, six hundred ninety-seven".