12555630793632 has 24 divisors (see below), whose sum is σ = 32958530833536. Its totient is φ = 4185210264512.

The previous prime is 12555630793591. The next prime is 12555630793639. The reversal of 12555630793632 is 23639703655521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (12555630793639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65393910288 + ... + 65393910479.

It is an arithmetic number, because the mean of its divisors is an integer number (1373272118064).

Almost surely, 2^{12555630793632} is an apocalyptic number.

12555630793632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12555630793632 is an abundant number, since it is smaller than the sum of its proper divisors (20402900039904).

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

12555630793632 is a wasteful number, since it uses less digits than its factorization.

12555630793632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130787820780 (or 130787820772 counting only the distinct ones).

The product of its (nonzero) digits is 30618000, while the sum is 57.

The spelling of 12555630793632 in words is "twelve trillion, five hundred fifty-five billion, six hundred thirty million, seven hundred ninety-three thousand, six hundred thirty-two".