18083921965164 has 72 divisors (see below), whose sum is σ = 49872821124672. Its totient is φ = 5479422912480.

The previous prime is 18083921965093. The next prime is 18083921965169. The reversal of 18083921965164 is 46156912938081.

18083921965164 is a `hidden beast` number, since 1 + 8 + 0 + 8 + 3 + 9 + 21 + 96 + 516 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (18083921965169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1628467 + ... + 6230549.

It is an arithmetic number, because the mean of its divisors is an integer number (692678071176).

Almost surely, 2^{18083921965164} is an apocalyptic number.

It is an amenable number.

18083921965164 is an abundant number, since it is smaller than the sum of its proper divisors (31788899159508).

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

18083921965164 is a wasteful number, since it uses less digits than its factorization.

18083921965164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612027 (or 4612022 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 18083921965164 in words is "eighteen trillion, eighty-three billion, nine hundred twenty-one million, nine hundred sixty-five thousand, one hundred sixty-four".