680716752568 has 16 divisors (see below), whose sum is σ = 1276674371280. Its totient is φ = 340270253568.

The previous prime is 680716752467. The next prime is 680716752607. The reversal of 680716752568 is 865257617086.

It is a congruent number.

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, 10982505 + ... + 11044312.

It is an arithmetic number, because the mean of its divisors is an integer number (79792148205).

Almost surely, 2^680716752568 is an apocalyptic number.

It is an amenable number.

680716752568 is a deficient number, since it is larger than the sum of its proper divisors (595957618712).

680716752568 is a wasteful number, since it uses less digits than its factorization.

680716752568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22030686 (or 22030682 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 680716752568 in words is "six hundred eighty billion, seven hundred sixteen million, seven hundred fifty-two thousand, five hundred sixty-eight".