668034710818 has 16 divisors (see below), whose sum is σ = 1074693381120. Its totient is φ = 310466974896.

The previous prime is 668034710797. The next prime is 668034710873. The reversal of 668034710818 is 818017430866.

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, 165845730 + ... + 165849757.

It is an arithmetic number, because the mean of its divisors is an integer number (67168336320).

Almost surely, 2^668034710818 is an apocalyptic number.

668034710818 is a deficient number, since it is larger than the sum of its proper divisors (406658670302).

668034710818 is a wasteful number, since it uses less digits than its factorization.

668034710818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331695561.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 668034710818 in words is "six hundred sixty-eight billion, thirty-four million, seven hundred ten thousand, eight hundred eighteen".