680513516 has 6 divisors (see below), whose sum is σ = 1190898660. Its totient is φ = 340256756.

The previous prime is 680513513. The next prime is 680513521. The reversal of 680513516 is 615315086.

It is not an unprimeable number, because it can be changed into a prime (680513513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85064186 + ... + 85064193.

It is an arithmetic number, because the mean of its divisors is an integer number (198483110).

Almost surely, 2^680513516 is an apocalyptic number.

It is an amenable number.

680513516 is a deficient number, since it is larger than the sum of its proper divisors (510385144).

680513516 is a wasteful number, since it uses less digits than its factorization.

680513516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170128383 (or 170128381 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 680513516 is about 26086.6539824486. The cubic root of 680513516 is about 879.5872358309.

The spelling of 680513516 in words is "six hundred eighty million, five hundred thirteen thousand, five hundred sixteen".