13129533664 has 48 divisors (see below), whose sum is σ = 28735136640. Its totient is φ = 5864302080.

The previous prime is 13129533643. The next prime is 13129533701. The reversal of 13129533664 is 46633592131.

It is a self number, because there is not a number n which added to its sum of digits gives 13129533664.

It is a congruent number.

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, 496159 + ... + 521950.

It is an arithmetic number, because the mean of its divisors is an integer number (598648680).

Almost surely, 2^13129533664 is an apocalyptic number.

It is an amenable number.

13129533664 is an abundant number, since it is smaller than the sum of its proper divisors (15605602976).

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

13129533664 is a wasteful number, since it uses less digits than its factorization.

13129533664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018163 (or 1018155 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

The spelling of 13129533664 in words is "thirteen billion, one hundred twenty-nine million, five hundred thirty-three thousand, six hundred sixty-four".