668160936852 has 48 divisors (see below), whose sum is σ = 1565223113664. Its totient is φ = 221839072000.

The previous prime is 668160936809. The next prime is 668160936871. The reversal of 668160936852 is 258639061866.

It is a happy number.

It is a congruent number.

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, 2960902 + ... + 3178562.

It is an arithmetic number, because the mean of its divisors is an integer number (32608814868).

Almost surely, 2^668160936852 is an apocalyptic number.

It is an amenable number.

668160936852 is an abundant number, since it is smaller than the sum of its proper divisors (897062176812).

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

668160936852 is a wasteful number, since it uses less digits than its factorization.

668160936852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218680 (or 218678 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 668160936852 in words is "six hundred sixty-eight billion, one hundred sixty million, nine hundred thirty-six thousand, eight hundred fifty-two".