72224114920 has 64 divisors (see below), whose sum is σ = 163213399440. Its totient is φ = 28763750400.

The previous prime is 72224114903. The next prime is 72224114951. The reversal of 72224114920 is 2941142227.

It can be written as a sum of positive squares in 8 ways, for example, as 33344951236 + 38879163684 = 182606^2 + 197178^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23748600 + ... + 23751640.

Almost surely, 2^72224114920 is an apocalyptic number.

It is an amenable number.

72224114920 is an abundant number, since it is smaller than the sum of its proper divisors (90989284520).

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

72224114920 is a wasteful number, since it uses less digits than its factorization.

72224114920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446 (or 5442 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 72224114920 in words is "seventy-two billion, two hundred twenty-four million, one hundred fourteen thousand, nine hundred twenty".