680666807414 has 16 divisors (see below), whose sum is σ = 1162245300480. Its totient is φ = 295942089960.

The previous prime is 680666807389. The next prime is 680666807489. The reversal of 680666807414 is 414708666086.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 680666807414.

It is a congruent number.

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, 672595154 + ... + 672596165.

It is an arithmetic number, because the mean of its divisors is an integer number (72640331280).

Almost surely, 2^680666807414 is an apocalyptic number.

680666807414 is a deficient number, since it is larger than the sum of its proper divisors (481578493066).

680666807414 is a wasteful number, since it uses less digits than its factorization.

680666807414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345191355.

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 680666807414 in words is "six hundred eighty billion, six hundred sixty-six million, eight hundred seven thousand, four hundred fourteen".