12660142746 has 32 divisors (see below), whose sum is σ = 25496851968. Its totient is φ = 4190670000.

The previous prime is 12660142717. The next prime is 12660142751. The reversal of 12660142746 is 64724106621.

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, 1119621 + ... + 1130871.

It is an arithmetic number, because the mean of its divisors is an integer number (796776624).

Almost surely, 2^12660142746 is an apocalyptic number.

12660142746 is an abundant number, since it is smaller than the sum of its proper divisors (12836709222).

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

12660142746 is a wasteful number, since it uses less digits than its factorization.

12660142746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12546.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 12660142746 in words is "twelve billion, six hundred sixty million, one hundred forty-two thousand, seven hundred forty-six".