668677468448 has 24 divisors (see below), whose sum is σ = 1436136836400. Its totient is φ = 303944303680.

The previous prime is 668677468369. The next prime is 668677468457. The reversal of 668677468448 is 844864776866.

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, 949825598 + ... + 949826301.

It is an arithmetic number, because the mean of its divisors is an integer number (59839034850).

Almost surely, 2^668677468448 is an apocalyptic number.

It is an amenable number.

668677468448 is an abundant number, since it is smaller than the sum of its proper divisors (767459367952).

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

668677468448 is a wasteful number, since it uses less digits than its factorization.

668677468448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899651920 (or 1899651912 counting only the distinct ones).

The product of its digits is 2080899072, while the sum is 74.

The spelling of 668677468448 in words is "six hundred sixty-eight billion, six hundred seventy-seven million, four hundred sixty-eight thousand, four hundred forty-eight".