12402635660 has 48 divisors (see below), whose sum is σ = 26253357312. Its totient is φ = 4921560000.

The previous prime is 12402635659. The next prime is 12402635671. The reversal of 12402635660 is 6653620421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12402635660.

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, 2664335 + ... + 2668985.

It is an arithmetic number, because the mean of its divisors is an integer number (546944944).

Almost surely, 2^12402635660 is an apocalyptic number.

12402635660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12402635660 is an abundant number, since it is smaller than the sum of its proper divisors (13850721652).

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

12402635660 is a wasteful number, since it uses less digits than its factorization.

12402635660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694 (or 5692 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 12402635660 in words is "twelve billion, four hundred two million, six hundred thirty-five thousand, six hundred sixty".