668714417866 has 8 divisors (see below), whose sum is σ = 1094259956544. Its totient is φ = 303961099020.

The previous prime is 668714417849. The next prime is 668714417881.

It is a happy number.

668714417866 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 668714417798 and 668714417807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15198054930 + ... + 15198054973.

It is an arithmetic number, because the mean of its divisors is an integer number (136782494568).

Almost surely, 2^668714417866 is an apocalyptic number.

668714417866 is a deficient number, since it is larger than the sum of its proper divisors (425545538678).

668714417866 is a wasteful number, since it uses less digits than its factorization.

668714417866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30396109916.

The product of its digits is 65028096, while the sum is 64.

The spelling of 668714417866 in words is "six hundred sixty-eight billion, seven hundred fourteen million, four hundred seventeen thousand, eight hundred sixty-six".