18336367161857 has 16 divisors (see below), whose sum is σ = 19271714172480. Its totient is φ = 17424244176192.

The previous prime is 18336367161823. The next prime is 18336367161923. The reversal of 18336367161857 is 75816176363381.

It is a cyclic number.

It is not a de Polignac number, because 18336367161857 - 2⁸ = 18336367161601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18336367161793 and 18336367161802.

It is not an unprimeable number, because it can be changed into a prime (18336367166857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16499918 + ... + 17576120.

It is an arithmetic number, because the mean of its divisors is an integer number (1204482135780).

Almost surely, 2^{18336367161857} is an apocalyptic number.

It is an amenable number.

18336367161857 is a deficient number, since it is larger than the sum of its proper divisors (935347010623).

18336367161857 is a wasteful number, since it uses less digits than its factorization.

18336367161857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086992.

The product of its digits is 91445760, while the sum is 65.

The spelling of 18336367161857 in words is "eighteen trillion, three hundred thirty-six billion, three hundred sixty-seven million, one hundred sixty-one thousand, eight hundred fifty-seven".