668586288 has 40 divisors (see below), whose sum is σ = 1818088000. Its totient is φ = 211132224.

The previous prime is 668586253. The next prime is 668586299. The reversal of 668586288 is 882685866.

668586288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365638 + ... + 367461.

It is an arithmetic number, because the mean of its divisors is an integer number (45452200).

Almost surely, 2^668586288 is an apocalyptic number.

It is an amenable number.

668586288 is an abundant number, since it is smaller than the sum of its proper divisors (1149501712).

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

668586288 is a wasteful number, since it uses less digits than its factorization.

668586288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733129 (or 733123 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 57.

The square root of 668586288 is about 25857.0355609455. The cubic root of 668586288 is about 874.4181330952.

The spelling of 668586288 in words is "six hundred sixty-eight million, five hundred eighty-six thousand, two hundred eighty-eight".