13307999956 has 6 divisors (see below), whose sum is σ = 23288999930. Its totient is φ = 6653999976.

The previous prime is 13307999933. The next prime is 13307999989. The reversal of 13307999956 is 65999970331.

It can be written as a sum of positive squares in only one way, i.e., 6941555856 + 6366444100 = 83316^2 + 79790^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13307999894 and 13307999903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1663499991 + ... + 1663499998.

Almost surely, 2^13307999956 is an apocalyptic number.

It is an amenable number.

13307999956 is a deficient number, since it is larger than the sum of its proper divisors (9980999974).

13307999956 is a wasteful number, since it uses less digits than its factorization.

13307999956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326999993 (or 3326999991 counting only the distinct ones).

The product of its (nonzero) digits is 12400290, while the sum is 61.

The spelling of 13307999956 in words is "thirteen billion, three hundred seven million, nine hundred ninety-nine thousand, nine hundred fifty-six".