18056667956796 has 36 divisors (see below), whose sum is σ = 52163707431472. Its totient is φ = 5159047987584.

The previous prime is 18056667956777. The next prime is 18056667956857. The reversal of 18056667956796 is 69765976665081.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 35826721885 + ... + 35826722388.

Almost surely, 2^{18056667956796} is an apocalyptic number.

It is an amenable number.

18056667956796 is an abundant number, since it is smaller than the sum of its proper divisors (34107039474676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18056667956796 is a wasteful number, since it uses less digits than its factorization.

18056667956796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71653444290 (or 71653444285 counting only the distinct ones).

The product of its (nonzero) digits is 6172588800, while the sum is 81.

The spelling of 18056667956796 in words is "eighteen trillion, fifty-six billion, six hundred sixty-seven million, nine hundred fifty-six thousand, seven hundred ninety-six".