12567557101625 has 16 divisors (see below), whose sum is σ = 15691104308880. Its totient is φ = 10049691164800.

The previous prime is 12567557101607. The next prime is 12567557101633. The reversal of 12567557101625 is 52610175576521.

It can be written as a sum of positive squares in 8 ways, for example, as 184456506256 + 12383100595369 = 429484^2 + 3518963^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12567557101625 is a prime.

It is an unprimeable number.

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, 21482804 + ... + 22060053.

It is an arithmetic number, because the mean of its divisors is an integer number (980694019305).

Almost surely, 2^{12567557101625} is an apocalyptic number.

It is an amenable number.

12567557101625 is a deficient number, since it is larger than the sum of its proper divisors (3123547207255).

12567557101625 is an equidigital number, since it uses as much as digits as its factorization.

12567557101625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43545181 (or 43545171 counting only the distinct ones).

The product of its (nonzero) digits is 4410000, while the sum is 53.

The spelling of 12567557101625 in words is "twelve trillion, five hundred sixty-seven billion, five hundred fifty-seven million, one hundred one thousand, six hundred twenty-five".