13161236272 has 20 divisors (see below), whose sum is σ = 26608587120. Its totient is φ = 6294504128.

The previous prime is 13161236269. The next prime is 13161236287. The reversal of 13161236272 is 27263216131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17881747 + ... + 17882482.

It is an arithmetic number, because the mean of its divisors is an integer number (1330429356).

Almost surely, 2^13161236272 is an apocalyptic number.

It is an amenable number.

13161236272 is an abundant number, since it is smaller than the sum of its proper divisors (13447350848).

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

13161236272 is a wasteful number, since it uses less digits than its factorization.

13161236272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35764260 (or 35764254 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The spelling of 13161236272 in words is "thirteen billion, one hundred sixty-one million, two hundred thirty-six thousand, two hundred seventy-two".