12500634256557 has 16 divisors (see below), whose sum is σ = 16745993177088. Its totient is φ = 8294532444720.

The previous prime is 12500634256519. The next prime is 12500634256597. The reversal of 12500634256557 is 75565243600521.

It is not a de Polignac number, because 12500634256557 - 2¹¹ = 12500634254509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500634256597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 915082 + ... + 5083172.

It is an arithmetic number, because the mean of its divisors is an integer number (1046624573568).

Almost surely, 2^{12500634256557} is an apocalyptic number.

It is an amenable number.

12500634256557 is a deficient number, since it is larger than the sum of its proper divisors (4245358920531).

12500634256557 is a wasteful number, since it uses less digits than its factorization.

12500634256557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172800.

The product of its (nonzero) digits is 7560000, while the sum is 51.

The spelling of 12500634256557 in words is "twelve trillion, five hundred billion, six hundred thirty-four million, two hundred fifty-six thousand, five hundred fifty-seven".