22515470256 has 40 divisors (see below), whose sum is σ = 58176326080. Its totient is φ = 7503690816.

The previous prime is 22515470249. The next prime is 22515470279. The reversal of 22515470256 is 65207451522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218175 + ... + 304353.

It is an arithmetic number, because the mean of its divisors is an integer number (1454408152).

Almost surely, 2^22515470256 is an apocalyptic number.

It is an amenable number.

22515470256 is an abundant number, since it is smaller than the sum of its proper divisors (35660855824).

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

22515470256 is a wasteful number, since it uses less digits than its factorization.

22515470256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91633 (or 91627 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 22515470256 in words is "twenty-two billion, five hundred fifteen million, four hundred seventy thousand, two hundred fifty-six".