12512705751165 has 16 divisors (see below), whose sum is σ = 20020845233088. Its totient is φ = 6673271056896.

The previous prime is 12512705751137. The next prime is 12512705751167. The reversal of 12512705751165 is 56115750721521.

It is not a de Polignac number, because 12512705751165 - 2²⁵ = 12512672196733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512705751167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10148212 + ... + 11314221.

It is an arithmetic number, because the mean of its divisors is an integer number (1251302827068).

Almost surely, 2^{12512705751165} is an apocalyptic number.

12512705751165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12512705751165 is a deficient number, since it is larger than the sum of its proper divisors (7508139481923).

12512705751165 is a wasteful number, since it uses less digits than its factorization.

12512705751165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21501308.

The product of its (nonzero) digits is 735000, while the sum is 48.

The spelling of 12512705751165 in words is "twelve trillion, five hundred twelve billion, seven hundred five million, seven hundred fifty-one thousand, one hundred sixty-five".