12647252164 has 12 divisors (see below), whose sum is σ = 22136878764. Its totient is φ = 6322429664.

The previous prime is 12647252143. The next prime is 12647252203. The reversal of 12647252164 is 46125274621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8582169600 + 4065082564 = 92640^2 + 63758^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275107 + ... + 317770.

It is an arithmetic number, because the mean of its divisors is an integer number (1844739897).

Almost surely, 2^12647252164 is an apocalyptic number.

It is an amenable number.

12647252164 is a deficient number, since it is larger than the sum of its proper divisors (9489626600).

12647252164 is a wasteful number, since it uses less digits than its factorization.

12647252164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598214 (or 598212 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The spelling of 12647252164 in words is "twelve billion, six hundred forty-seven million, two hundred fifty-two thousand, one hundred sixty-four".