13656168880 has 20 divisors (see below), whose sum is σ = 31750592832. Its totient is φ = 5462467520.

The previous prime is 13656168859. The next prime is 13656168899. The reversal of 13656168880 is 8886165631.

It is a tau number, because it is divible by the number of its divisors (20).

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, 85350976 + ... + 85351135.

Almost surely, 2^13656168880 is an apocalyptic number.

13656168880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13656168880 is an abundant number, since it is smaller than the sum of its proper divisors (18094423952).

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

13656168880 is a wasteful number, since it uses less digits than its factorization.

13656168880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170702124 (or 170702118 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 13656168880 in words is "thirteen billion, six hundred fifty-six million, one hundred sixty-eight thousand, eight hundred eighty".