13199252544 has 63 divisors (see below), whose sum is σ = 37841179207. Its totient is φ = 4398831744.

The previous prime is 13199252527. The next prime is 13199252579. The reversal of 13199252544 is 44525299131.

It is a happy number.

The square root of 13199252544 is 114888.

It is a perfect power (a square), and thus also a powerful number.

13199252544 is a `hidden beast` number, since 1 + 3 + 19 + 92 + 5 + 2 + 544 = 666.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13199252544.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2754919 + ... + 2759705.

Almost surely, 2^13199252544 is an apocalyptic number.

13199252544 is the 114888-th square number.

It is an amenable number.

13199252544 is an abundant number, since it is smaller than the sum of its proper divisors (24641926663).

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

13199252544 is an frugal number, since it uses more digits than its factorization.

13199252544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9592 (or 4792 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The spelling of 13199252544 in words is "thirteen billion, one hundred ninety-nine million, two hundred fifty-two thousand, five hundred forty-four".