668008713758 has 8 divisors (see below), whose sum is σ = 1002115881000. Its totient is φ = 333970086760.

The previous prime is 668008713709. The next prime is 668008713763. The reversal of 668008713758 is 857317800866.

It is a happy number.

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 = 668008713697 and 668008713706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17110688 + ... + 17149683.

It is an arithmetic number, because the mean of its divisors is an integer number (125264485125).

Almost surely, 2^668008713758 is an apocalyptic number.

668008713758 is a deficient number, since it is larger than the sum of its proper divisors (334107167242).

668008713758 is a wasteful number, since it uses less digits than its factorization.

668008713758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34270122.

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 668008713758 in words is "six hundred sixty-eight billion, eight million, seven hundred thirteen thousand, seven hundred fifty-eight".