13156052040 has 48 divisors (see below), whose sum is σ = 42757170300. Its totient is φ = 3508280448.

The previous prime is 13156052017. The next prime is 13156052051. The reversal of 13156052040 is 4025065131.

13156052040 is a `hidden beast` number, since 1 + 3 + 15 + 605 + 2 + 0 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12512212164 + 643839876 = 111858^2 + 25374^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13156051995 and 13156052013.

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, 18271935 + ... + 18272654.

Almost surely, 2^13156052040 is an apocalyptic number.

13156052040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13156052040 is an abundant number, since it is smaller than the sum of its proper divisors (29601118260).

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

13156052040 is a wasteful number, since it uses less digits than its factorization.

13156052040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36544606 (or 36544599 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 13156052040 in words is "thirteen billion, one hundred fifty-six million, fifty-two thousand, forty".