680800134664 has 32 divisors (see below), whose sum is σ = 1374727173120. Its totient is φ = 314207539776.

The previous prime is 680800134601. The next prime is 680800134769. The reversal of 680800134664 is 466431008086.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6913179 + ... + 7010965.

It is an arithmetic number, because the mean of its divisors is an integer number (42960224160).

Almost surely, 2^680800134664 is an apocalyptic number.

It is an amenable number.

680800134664 is an abundant number, since it is smaller than the sum of its proper divisors (693927038456).

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

680800134664 is a wasteful number, since it uses less digits than its factorization.

680800134664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164749 (or 164745 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 680800134664 in words is "six hundred eighty billion, eight hundred million, one hundred thirty-four thousand, six hundred sixty-four".