18990652995522 has 48 divisors (see below), whose sum is σ = 44312230435200. Its totient is φ = 5843184643296.

The previous prime is 18990652995521. The next prime is 18990652995547. The reversal of 18990652995522 is 22559925609981.

18990652995522 is a `hidden beast` number, since 1 + 8 + 9 + 9 + 0 + 6 + 5 + 2 + 9 + 95 + 522 = 666.

It is not an unprimeable number, because it can be changed into a prime (18990652995521) 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 23 ways as a sum of consecutive naturals, for example, 14845479 + ... + 16073877.

It is an arithmetic number, because the mean of its divisors is an integer number (923171467400).

Almost surely, 2^{18990652995522} is an apocalyptic number.

18990652995522 is an abundant number, since it is smaller than the sum of its proper divisors (25321577439678).

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

18990652995522 is a wasteful number, since it uses less digits than its factorization.

18990652995522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294487 (or 1294484 counting only the distinct ones).

The product of its (nonzero) digits is 314928000, while the sum is 72.

The spelling of 18990652995522 in words is "eighteen trillion, nine hundred ninety billion, six hundred fifty-two million, nine hundred ninety-five thousand, five hundred twenty-two".