13128159924 has 36 divisors (see below), whose sum is σ = 36201896640. Its totient is φ = 3978230160.

The previous prime is 13128159923. The next prime is 13128159937. The reversal of 13128159924 is 42995182131.

13128159924 is a `hidden beast` number, since 1 + 31 + 2 + 8 + 1 + 599 + 24 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13128159924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13128159923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16575564 + ... + 16576355.

It is an arithmetic number, because the mean of its divisors is an integer number (1005608240).

Almost surely, 2^13128159924 is an apocalyptic number.

It is an amenable number.

13128159924 is an abundant number, since it is smaller than the sum of its proper divisors (23073736716).

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

13128159924 is a wasteful number, since it uses less digits than its factorization.

13128159924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33151940 (or 33151935 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The spelling of 13128159924 in words is "thirteen billion, one hundred twenty-eight million, one hundred fifty-nine thousand, nine hundred twenty-four".