680159105999 has 2 divisors, whose sum is σ = 680159106000. Its totient is φ = 680159105998.

The previous prime is 680159105993. The next prime is 680159106007. The reversal of 680159105999 is 999501951086.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680159105999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680159105993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340079552999 + 340079553000.

It is an arithmetic number, because the mean of its divisors is an integer number (340079553000).

Almost surely, 2^680159105999 is an apocalyptic number.

680159105999 is a deficient number, since it is larger than the sum of its proper divisors (1).

680159105999 is an equidigital number, since it uses as much as digits as its factorization.

680159105999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7873200, while the sum is 62.

The spelling of 680159105999 in words is "six hundred eighty billion, one hundred fifty-nine million, one hundred five thousand, nine hundred ninety-nine".