680115658 has 16 divisors (see below), whose sum is σ = 1069318656. Its totient is φ = 323809200.

The previous prime is 680115643. The next prime is 680115671. The reversal of 680115658 is 856511086.

680115658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 680115658.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22893 + ... + 43408.

It is an arithmetic number, because the mean of its divisors is an integer number (66832416).

Almost surely, 2^680115658 is an apocalyptic number.

680115658 is a deficient number, since it is larger than the sum of its proper divisors (389202998).

680115658 is a wasteful number, since it uses less digits than its factorization.

680115658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66549.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 680115658 is about 26079.0271674386. The cubic root of 680115658 is about 879.4157873432.

The spelling of 680115658 in words is "six hundred eighty million, one hundred fifteen thousand, six hundred fifty-eight".