20932115544 has 24 divisors (see below), whose sum is σ = 56691146460. Its totient is φ = 6977371824.

The previous prime is 20932115537. The next prime is 20932115573. The reversal of 20932115544 is 44551123902.

20932115544 is a `hidden beast` number, since 2 + 0 + 93 + 2 + 11 + 554 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×20932115544² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20932115499 and 20932115508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145361842 + ... + 145361985.

Almost surely, 2^20932115544 is an apocalyptic number.

20932115544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20932115544 is an abundant number, since it is smaller than the sum of its proper divisors (35759030916).

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

20932115544 is a wasteful number, since it uses less digits than its factorization.

20932115544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290723839 (or 290723832 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 20932115544 in words is "twenty billion, nine hundred thirty-two million, one hundred fifteen thousand, five hundred forty-four".