18032871575664 has 240 divisors, whose sum is σ = 57339044066304. Its totient is φ = 5441050713600.

The previous prime is 18032871575659. The next prime is 18032871575699. The reversal of 18032871575664 is 46657517823081.

It is a happy number.

18032871575664 is a `hidden beast` number, since 18 + 0 + 3 + 2 + 8 + 7 + 1 + 57 + 566 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9060129 + ... + 10869759.

Almost surely, 2^{18032871575664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18032871575664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28669522033152).

18032871575664 is an abundant number, since it is smaller than the sum of its proper divisors (39306172490640).

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

18032871575664 is a wasteful number, since it uses less digits than its factorization.

18032871575664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809898 (or 1809880 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 63.

The spelling of 18032871575664 in words is "eighteen trillion, thirty-two billion, eight hundred seventy-one million, five hundred seventy-five thousand, six hundred sixty-four".