13636966656 has 72 divisors (see below), whose sum is σ = 36312232320. Its totient is φ = 4543399936.

The previous prime is 13636966643. The next prime is 13636966747. The reversal of 13636966656 is 65666963631.

It is a junction number, because it is equal to n+sod(n) for n = 13636966596 and 13636966605.

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, 2392546 + ... + 2398238.

It is an arithmetic number, because the mean of its divisors is an integer number (504336560).

Almost surely, 2^13636966656 is an apocalyptic number.

13636966656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13636966656 is an abundant number, since it is smaller than the sum of its proper divisors (22675265664).

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

13636966656 is an equidigital number, since it uses as much as digits as its factorization.

13636966656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831 (or 8817 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 57.

The spelling of 13636966656 in words is "thirteen billion, six hundred thirty-six million, nine hundred sixty-six thousand, six hundred fifty-six".