668500662 has 32 divisors (see below), whose sum is σ = 1352856672. Its totient is φ = 220207104.

The previous prime is 668500649. The next prime is 668500687. The reversal of 668500662 is 266005866.

668500662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 668500662.

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, 179968 + ... + 183644.

It is an arithmetic number, because the mean of its divisors is an integer number (42276771).

Almost surely, 2^668500662 is an apocalyptic number.

668500662 is an abundant number, since it is smaller than the sum of its proper divisors (684356010).

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

668500662 is a wasteful number, since it uses less digits than its factorization.

668500662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 668500662 is about 25855.3797496769. The cubic root of 668500662 is about 874.3808025243.

The spelling of 668500662 in words is "six hundred sixty-eight million, five hundred thousand, six hundred sixty-two".