12661732304 has 40 divisors (see below), whose sum is σ = 26434974720. Its totient is φ = 5840385408.

The previous prime is 12661732301. The next prime is 12661732319. The reversal of 12661732304 is 40323716621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12661732301) 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, 348569 + ... + 383175.

It is an arithmetic number, because the mean of its divisors is an integer number (660874368).

Almost surely, 2^12661732304 is an apocalyptic number.

It is an amenable number.

12661732304 is an abundant number, since it is smaller than the sum of its proper divisors (13773242416).

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

12661732304 is a wasteful number, since it uses less digits than its factorization.

12661732304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36387 (or 36381 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 12661732304 in words is "twelve billion, six hundred sixty-one million, seven hundred thirty-two thousand, three hundred four".