668667131876 has 48 divisors (see below), whose sum is σ = 1205574838272. Its totient is φ = 324312307200.

The previous prime is 668667131833. The next prime is 668667131893. The reversal of 668667131876 is 678131766866.

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, 86982905 + ... + 86990591.

It is an arithmetic number, because the mean of its divisors is an integer number (25116142464).

Almost surely, 2^668667131876 is an apocalyptic number.

It is an amenable number.

668667131876 is a deficient number, since it is larger than the sum of its proper divisors (536907706396).

668667131876 is a wasteful number, since it uses less digits than its factorization.

668667131876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10700 (or 10698 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 65.

The spelling of 668667131876 in words is "six hundred sixty-eight billion, six hundred sixty-seven million, one hundred thirty-one thousand, eight hundred seventy-six".