18756855168 has 64 divisors (see below), whose sum is σ = 49837155120. Its totient is φ = 6250496000.

The previous prime is 18756855167. The next prime is 18756855179. The reversal of 18756855168 is 86155865781.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18756855167) 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 in 7 ways as a sum of consecutive naturals, for example, 2675668 + ... + 2682668.

Almost surely, 2^18756855168 is an apocalyptic number.

It is an amenable number.

18756855168 is an abundant number, since it is smaller than the sum of its proper divisors (31080299952).

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

18756855168 is an equidigital number, since it uses as much as digits as its factorization.

18756855168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13995 (or 13983 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 60.

The spelling of 18756855168 in words is "eighteen billion, seven hundred fifty-six million, eight hundred fifty-five thousand, one hundred sixty-eight".