22139881596 has 72 divisors (see below), whose sum is σ = 63973719264. Its totient is φ = 6324289920.

The previous prime is 22139881573. The next prime is 22139881601. The reversal of 22139881596 is 69518893122.

It is a congruent number.

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, 1841926 + ... + 1853906.

Almost surely, 2^22139881596 is an apocalyptic number.

It is an amenable number.

22139881596 is an abundant number, since it is smaller than the sum of its proper divisors (41833837668).

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

22139881596 is a wasteful number, since it uses less digits than its factorization.

22139881596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19331 (or 19326 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The spelling of 22139881596 in words is "twenty-two billion, one hundred thirty-nine million, eight hundred eighty-one thousand, five hundred ninety-six".