22715287680 has 64 divisors (see below), whose sum is σ = 72404985600. Its totient is φ = 6057409536.

The previous prime is 22715287657. The next prime is 22715287709. The reversal of 22715287680 is 8678251722.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 5913520 + ... + 5917359.

It is an arithmetic number, because the mean of its divisors is an integer number (1131327900).

Almost surely, 2^22715287680 is an apocalyptic number.

22715287680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22715287680 is an abundant number, since it is smaller than the sum of its proper divisors (49689697920).

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

22715287680 is a wasteful number, since it uses less digits than its factorization.

22715287680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11830901 (or 11830889 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 22715287680 in words is "twenty-two billion, seven hundred fifteen million, two hundred eighty-seven thousand, six hundred eighty".