680186616 has 16 divisors (see below), whose sum is σ = 1700466600. Its totient is φ = 226728864.

The previous prime is 680186587. The next prime is 680186623. The reversal of 680186616 is 616681086.

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, 14170531 + ... + 14170578.

Almost surely, 2^680186616 is an apocalyptic number.

It is an amenable number.

680186616 is an abundant number, since it is smaller than the sum of its proper divisors (1020279984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680186616 is a wasteful number, since it uses less digits than its factorization.

680186616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28341118 (or 28341114 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 680186616 is about 26080.3875738073. The cubic root of 680186616 is about 879.4463700902.

The spelling of 680186616 in words is "six hundred eighty million, one hundred eighty-six thousand, six hundred sixteen".