668080862 has 16 divisors (see below), whose sum is σ = 1056052512. Its totient is φ = 316351200.

The previous prime is 668080823. The next prime is 668080877. The reversal of 668080862 is 268080866.

It is a congruent number.

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, 67253 + ... + 76544.

It is an arithmetic number, because the mean of its divisors is an integer number (66003282).

Almost surely, 2^668080862 is an apocalyptic number.

668080862 is a deficient number, since it is larger than the sum of its proper divisors (387971650).

668080862 is a wasteful number, since it uses less digits than its factorization.

668080862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143923.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 668080862 is about 25847.2602416581. The cubic root of 668080862 is about 874.1977351796.

The spelling of 668080862 in words is "six hundred sixty-eight million, eighty thousand, eight hundred sixty-two".