12556120536124 has 24 divisors (see below), whose sum is σ = 23973075358848. Its totient is φ = 5706779947440.

The previous prime is 12556120536121. The next prime is 12556120536133. The reversal of 12556120536124 is 42163502165521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12556120536121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13225224 + ... + 14142799.

It is an arithmetic number, because the mean of its divisors is an integer number (998878139952).

Almost surely, 2^{12556120536124} is an apocalyptic number.

It is an amenable number.

12556120536124 is a deficient number, since it is larger than the sum of its proper divisors (11416954822724).

12556120536124 is a wasteful number, since it uses less digits than its factorization.

12556120536124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27378465 (or 27378463 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 12556120536124 in words is "twelve trillion, five hundred fifty-six billion, one hundred twenty million, five hundred thirty-six thousand, one hundred twenty-four".