668311250716 has 6 divisors (see below), whose sum is σ = 1169544688760. Its totient is φ = 334155625356.

The previous prime is 668311250699. The next prime is 668311250743. The reversal of 668311250716 is 617052113866.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83538906336 + ... + 83538906343.

Almost surely, 2^668311250716 is an apocalyptic number.

It is an amenable number.

668311250716 is a deficient number, since it is larger than the sum of its proper divisors (501233438044).

668311250716 is a wasteful number, since it uses less digits than its factorization.

668311250716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167077812683 (or 167077812681 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 668311250716 in words is "six hundred sixty-eight billion, three hundred eleven million, two hundred fifty thousand, seven hundred sixteen".