680601568 has 24 divisors (see below), whose sum is σ = 1340749368. Its totient is φ = 340093824.

The previous prime is 680601563. The next prime is 680601587. The reversal of 680601568 is 865106086.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 680601568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680601563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56355 + ... + 67357.

It is an arithmetic number, because the mean of its divisors is an integer number (55864557).

Almost surely, 2^680601568 is an apocalyptic number.

It is an amenable number.

680601568 is a deficient number, since it is larger than the sum of its proper divisors (660147800).

680601568 is a wasteful number, since it uses less digits than its factorization.

680601568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12946 (or 12938 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 680601568 is about 26088.3416107655. The cubic root of 680601568 is about 879.6251709457.

The spelling of 680601568 in words is "six hundred eighty million, six hundred one thousand, five hundred sixty-eight".