13377875556 has 12 divisors (see below), whose sum is σ = 31215042992. Its totient is φ = 4459291848.

The previous prime is 13377875543. The next prime is 13377875573. The reversal of 13377875556 is 65557877331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13377875496 and 13377875505.

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, 557411470 + ... + 557411493.

Almost surely, 2^13377875556 is an apocalyptic number.

It is an amenable number.

13377875556 is an abundant number, since it is smaller than the sum of its proper divisors (17837167436).

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

13377875556 is a wasteful number, since it uses less digits than its factorization.

13377875556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114822970 (or 1114822968 counting only the distinct ones).

The product of its digits is 18522000, while the sum is 57.

The spelling of 13377875556 in words is "thirteen billion, three hundred seventy-seven million, eight hundred seventy-five thousand, five hundred fifty-six".