664126313416 has 16 divisors (see below), whose sum is σ = 1247683283100. Its totient is φ = 331410771264.

The previous prime is 664126313407. The next prime is 664126313483. The reversal of 664126313416 is 614313621466.

It can be written as a sum of positive squares in 2 ways, for example, as 643611480516 + 20514832900 = 802254^2 + 143230^2 .

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, 81543855 + ... + 81551998.

Almost surely, 2^664126313416 is an apocalyptic number.

It is an amenable number.

664126313416 is a deficient number, since it is larger than the sum of its proper divisors (583556969684).

664126313416 is a wasteful number, since it uses less digits than its factorization.

664126313416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163096368 (or 163096364 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The spelling of 664126313416 in words is "six hundred sixty-four billion, one hundred twenty-six million, three hundred thirteen thousand, four hundred sixteen".