12653431164 has 36 divisors (see below), whose sum is σ = 34892796120. Its totient is φ = 3834372960.

The previous prime is 12653431139. The next prime is 12653431187. The reversal of 12653431164 is 46113435621.

12653431164 is a `hidden beast` number, since 1 + 2 + 6 + 534 + 3 + 116 + 4 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 15976159 + ... + 15976950.

Almost surely, 2^12653431164 is an apocalyptic number.

It is an amenable number.

12653431164 is an abundant number, since it is smaller than the sum of its proper divisors (22239364956).

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

12653431164 is a wasteful number, since it uses less digits than its factorization.

12653431164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31953130 (or 31953125 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

Adding to 12653431164 its reverse (46113435621), we get a palindrome (58766866785).

The spelling of 12653431164 in words is "twelve billion, six hundred fifty-three million, four hundred thirty-one thousand, one hundred sixty-four".