23642534656 has 36 divisors (see below), whose sum is σ = 50822931712. Its totient is φ = 10911937536.

The previous prime is 23642534639. The next prime is 23642534677. The reversal of 23642534656 is 65643524632.

It is a super-2 number, since 2×23642534656² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3548736 + ... + 3555391.

Almost surely, 2^23642534656 is an apocalyptic number.

23642534656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23642534656 is an abundant number, since it is smaller than the sum of its proper divisors (27180397056).

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

23642534656 is an equidigital number, since it uses as much as digits as its factorization.

23642534656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104156 (or 7104142 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 46.

The spelling of 23642534656 in words is "twenty-three billion, six hundred forty-two million, five hundred thirty-four thousand, six hundred fifty-six".