668683202 has 16 divisors (see below), whose sum is σ = 1158574752. Its totient is φ = 286067520.

The previous prime is 668683187. The next prime is 668683231. The reversal of 668683202 is 202386866.

It is a self number, because there is not a number n which added to its sum of digits gives 668683202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893588 + ... + 894335.

It is an arithmetic number, because the mean of its divisors is an integer number (72410922).

Almost surely, 2^668683202 is an apocalyptic number.

668683202 is a deficient number, since it is larger than the sum of its proper divisors (489891550).

668683202 is a wasteful number, since it uses less digits than its factorization.

668683202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787953.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 668683202 is about 25858.9095284391. The cubic root of 668683202 is about 874.4603810774.

The spelling of 668683202 in words is "six hundred sixty-eight million, six hundred eighty-three thousand, two hundred two".