21932539160 has 48 divisors (see below), whose sum is σ = 57405069360. Its totient is φ = 7519727040.

The previous prime is 21932539121. The next prime is 21932539183. The reversal of 21932539160 is 6193523912.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5593076 + ... + 5596995.

It is an arithmetic number, because the mean of its divisors is an integer number (1195938945).

Almost surely, 2^21932539160 is an apocalyptic number.

21932539160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21932539160 is an abundant number, since it is smaller than the sum of its proper divisors (35472530200).

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

21932539160 is a wasteful number, since it uses less digits than its factorization.

21932539160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11190096 (or 11190085 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 21932539160 in words is "twenty-one billion, nine hundred thirty-two million, five hundred thirty-nine thousand, one hundred sixty".