22997569540 has 48 divisors (see below), whose sum is σ = 52714327680. Its totient is φ = 8358151680.

The previous prime is 22997569513. The next prime is 22997569549. The reversal of 22997569540 is 4596579922.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22997569549) 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, 385564 + ... + 441196.

It is an arithmetic number, because the mean of its divisors is an integer number (1098215160).

Almost surely, 2^22997569540 is an apocalyptic number.

22997569540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22997569540 is an abundant number, since it is smaller than the sum of its proper divisors (29716758140).

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

22997569540 is a wasteful number, since it uses less digits than its factorization.

22997569540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57532 (or 57530 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 22997569540 in words is "twenty-two billion, nine hundred ninety-seven million, five hundred sixty-nine thousand, five hundred forty".