22155632892 has 36 divisors (see below), whose sum is σ = 58078760376. Its totient is φ = 7385210640.

The previous prime is 22155632869. The next prime is 22155632897. The reversal of 22155632892 is 29823655122.

22155632892 is a `hidden beast` number, since 2 + 2 + 1 + 5 + 5 + 632 + 8 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155632897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11395959 + ... + 11397902.

Almost surely, 2^22155632892 is an apocalyptic number.

It is an amenable number.

22155632892 is an abundant number, since it is smaller than the sum of its proper divisors (35923127484).

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

22155632892 is a wasteful number, since it uses less digits than its factorization.

22155632892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22793880 (or 22793866 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 22155632892 in words is "twenty-two billion, one hundred fifty-five million, six hundred thirty-two thousand, eight hundred ninety-two".