12555516636124 has 48 divisors (see below), whose sum is σ = 27394288540416. Its totient is φ = 4891682217600.

The previous prime is 12555516636107. The next prime is 12555516636137. The reversal of 12555516636124 is 42163661555521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21546912 + ... + 22121944.

It is an arithmetic number, because the mean of its divisors is an integer number (570714344592).

Almost surely, 2^{12555516636124} is an apocalyptic number.

12555516636124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12555516636124 is an abundant number, since it is smaller than the sum of its proper divisors (14838771904292).

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

12555516636124 is a wasteful number, since it uses less digits than its factorization.

12555516636124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645946 (or 645944 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 52.

The spelling of 12555516636124 in words is "twelve trillion, five hundred fifty-five billion, five hundred sixteen million, six hundred thirty-six thousand, one hundred twenty-four".