20555027552016 has 120 divisors (see below), whose sum is σ = 57743305308000. Its totient is φ = 6825786052608.

The previous prime is 20555027551999. The next prime is 20555027552027. The reversal of 20555027552016 is 61025572055502.

20555027552016 is a `hidden beast` number, since 2 + 0 + 5 + 5 + 50 + 2 + 75 + 520 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40200880 + ... + 40708976.

It is an arithmetic number, because the mean of its divisors is an integer number (481194210900).

Almost surely, 2^{20555027552016} is an apocalyptic number.

It is an amenable number.

20555027552016 is an abundant number, since it is smaller than the sum of its proper divisors (37188277755984).

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

20555027552016 is a wasteful number, since it uses less digits than its factorization.

20555027552016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509173 (or 509164 counting only the distinct ones).

The product of its (nonzero) digits is 1050000, while the sum is 45.

The spelling of 20555027552016 in words is "twenty trillion, five hundred fifty-five billion, twenty-seven million, five hundred fifty-two thousand, sixteen".