13377965556 has 24 divisors (see below), whose sum is σ = 32222197504. Its totient is φ = 4315472640.

The previous prime is 13377965543. The next prime is 13377965581. The reversal of 13377965556 is 65556977331.

It is a junction number, because it is equal to n+sod(n) for n = 13377965496 and 13377965505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17980765 + ... + 17981508.

Almost surely, 2^13377965556 is an apocalyptic number.

It is an amenable number.

13377965556 is an abundant number, since it is smaller than the sum of its proper divisors (18844231948).

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

13377965556 is a wasteful number, since it uses less digits than its factorization.

13377965556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35962311 (or 35962309 counting only the distinct ones).

The product of its digits is 17860500, while the sum is 57.

The spelling of 13377965556 in words is "thirteen billion, three hundred seventy-seven million, nine hundred sixty-five thousand, five hundred fifty-six".