22903568640 has 144 divisors (see below), whose sum is σ = 81275980800. Its totient is φ = 6107609088.

The previous prime is 22903568629. The next prime is 22903568669. The reversal of 22903568640 is 4686530922.

22903568640 is a `hidden beast` number, since 2 + 29 + 0 + 3 + 568 + 64 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296800 + ... + 365919.

Almost surely, 2^22903568640 is an apocalyptic number.

22903568640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22903568640 is an abundant number, since it is smaller than the sum of its proper divisors (58372412160).

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

22903568640 is an equidigital number, since it uses as much as digits as its factorization.

22903568640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662749 (or 662729 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 22903568640 in words is "twenty-two billion, nine hundred three million, five hundred sixty-eight thousand, six hundred forty".