12644161674 has 16 divisors (see below), whose sum is σ = 25318837920. Its totient is φ = 4209634800.

The previous prime is 12644161669. The next prime is 12644161693. The reversal of 12644161674 is 47616144621.

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, 1266052 + ... + 1275999.

It is an arithmetic number, because the mean of its divisors is an integer number (1582427370).

Almost surely, 2^12644161674 is an apocalyptic number.

12644161674 is an abundant number, since it is smaller than the sum of its proper divisors (12674676246).

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

12644161674 is a wasteful number, since it uses less digits than its factorization.

12644161674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542885.

The product of its digits is 193536, while the sum is 42.

The spelling of 12644161674 in words is "twelve billion, six hundred forty-four million, one hundred sixty-one thousand, six hundred seventy-four".