12525435564164 has 12 divisors (see below), whose sum is σ = 21998644052364. Its totient is φ = 6240108692064.

The previous prime is 12525435564163. The next prime is 12525435564167. The reversal of 12525435564164 is 46146553452521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1027097117764 + 11498338446400 = 1013458^2 + 3390920^2 .

It is a super-2 number, since 2×12525435564164² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12525435564163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5652271259 + ... + 5652273474.

It is an arithmetic number, because the mean of its divisors is an integer number (1833220337697).

Almost surely, 2^{12525435564164} is an apocalyptic number.

It is an amenable number.

12525435564164 is a deficient number, since it is larger than the sum of its proper divisors (9473208488200).

12525435564164 is a wasteful number, since it uses less digits than its factorization.

12525435564164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304545014 (or 11304545012 counting only the distinct ones).

The product of its digits is 17280000, while the sum is 53.

The spelling of 12525435564164 in words is "twelve trillion, five hundred twenty-five billion, four hundred thirty-five million, five hundred sixty-four thousand, one hundred sixty-four".