12505100636 has 24 divisors (see below), whose sum is σ = 25175840256. Its totient is φ = 5323834800.

The previous prime is 12505100609. The next prime is 12505100719. The reversal of 12505100636 is 63600150521.

It is a junction number, because it is equal to n+sod(n) for n = 12505100599 and 12505100608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1474616 + ... + 1483071.

It is an arithmetic number, because the mean of its divisors is an integer number (1048993344).

Almost surely, 2^12505100636 is an apocalyptic number.

It is an amenable number.

12505100636 is an abundant number, since it is smaller than the sum of its proper divisors (12670739620).

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

12505100636 is a wasteful number, since it uses less digits than its factorization.

12505100636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957849 (or 2957847 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 12505100636 in words is "twelve billion, five hundred five million, one hundred thousand, six hundred thirty-six".