680685891106 has 16 divisors (see below), whose sum is σ = 1106315348544. Its totient is φ = 312235338384.

The previous prime is 680685891103. The next prime is 680685891157. The reversal of 680685891106 is 601198586086.

It is not an unprimeable number, because it can be changed into a prime (680685891103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80303206 + ... + 80311681.

It is an arithmetic number, because the mean of its divisors is an integer number (69144709284).

Almost surely, 2^680685891106 is an apocalyptic number.

680685891106 is a deficient number, since it is larger than the sum of its proper divisors (425629457438).

680685891106 is a wasteful number, since it uses less digits than its factorization.

680685891106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160615065.

The product of its (nonzero) digits is 4976640, while the sum is 58.

The spelling of 680685891106 in words is "six hundred eighty billion, six hundred eighty-five million, eight hundred ninety-one thousand, one hundred six".