22564915980 has 48 divisors (see below), whose sum is σ = 63209238624. Its totient is φ = 6014694400.

The previous prime is 22564915963. The next prime is 22564915981. The reversal of 22564915980 is 8951946522.

It is not an unprimeable number, because it can be changed into a prime (22564915981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59380 + ... + 220580.

It is an arithmetic number, because the mean of its divisors is an integer number (1316859138).

Almost surely, 2^22564915980 is an apocalyptic number.

22564915980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22564915980 is an abundant number, since it is smaller than the sum of its proper divisors (40644322644).

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

22564915980 is a wasteful number, since it uses less digits than its factorization.

22564915980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163546 (or 163544 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 22564915980 in words is "twenty-two billion, five hundred sixty-four million, nine hundred fifteen thousand, nine hundred eighty".