12660075472 has 40 divisors (see below), whose sum is σ = 27922230720. Its totient is φ = 5504378880.

The previous prime is 12660075469. The next prime is 12660075479. The reversal of 12660075472 is 27457006621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12660075479) 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, 1559697 + ... + 1567792.

It is an arithmetic number, because the mean of its divisors is an integer number (698055768).

Almost surely, 2^12660075472 is an apocalyptic number.

It is an amenable number.

12660075472 is an abundant number, since it is smaller than the sum of its proper divisors (15262155248).

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

12660075472 is a wasteful number, since it uses less digits than its factorization.

12660075472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127531 (or 3127525 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 12660075472 in words is "twelve billion, six hundred sixty million, seventy-five thousand, four hundred seventy-two".