12501156512660 has 12 divisors (see below), whose sum is σ = 26252428676628. Its totient is φ = 5000462605056.

The previous prime is 12501156512657. The next prime is 12501156512681. The reversal of 12501156512660 is 6621565110521.

It can be written as a sum of positive squares in 2 ways, for example, as 1288851596176 + 11212304916484 = 1135276^2 + 3348478^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312528912797 + ... + 312528912836.

It is an arithmetic number, because the mean of its divisors is an integer number (2187702389719).

Almost surely, 2^{12501156512660} is an apocalyptic number.

12501156512660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12501156512660 is an abundant number, since it is smaller than the sum of its proper divisors (13751272163968).

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

12501156512660 is a wasteful number, since it uses less digits than its factorization.

12501156512660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625057825642 (or 625057825640 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 41.

The spelling of 12501156512660 in words is "twelve trillion, five hundred one billion, one hundred fifty-six million, five hundred twelve thousand, six hundred sixty".