13025013156 has 36 divisors (see below), whose sum is σ = 32963014812. Its totient is φ = 4336570944.

The previous prime is 13025013077. The next prime is 13025013173. The reversal of 13025013156 is 65131052031.

13025013156 is a `hidden beast` number, since 1 + 3 + 0 + 2 + 501 + 3 + 156 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5097960000 + 7927053156 = 71400^2 + 89034^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181371 + ... + 242786.

Almost surely, 2^13025013156 is an apocalyptic number.

It is an amenable number.

13025013156 is an abundant number, since it is smaller than the sum of its proper divisors (19938001656).

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

13025013156 is a wasteful number, since it uses less digits than its factorization.

13025013156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425020 (or 425015 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 13025013156 its reverse (65131052031), we get a palindrome (78156065187).

The spelling of 13025013156 in words is "thirteen billion, twenty-five million, thirteen thousand, one hundred fifty-six".