680606165308 has 24 divisors (see below), whose sum is σ = 1218861250992. Its totient is φ = 332361410304.

The previous prime is 680606165297. The next prime is 680606165357. The reversal of 680606165308 is 803561606086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1991166 + ... + 2307802.

It is an arithmetic number, because the mean of its divisors is an integer number (50785885458).

Almost surely, 2^680606165308 is an apocalyptic number.

It is an amenable number.

680606165308 is a deficient number, since it is larger than the sum of its proper divisors (538255085684).

680606165308 is a wasteful number, since it uses less digits than its factorization.

680606165308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329181 (or 329179 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 680606165308 in words is "six hundred eighty billion, six hundred six million, one hundred sixty-five thousand, three hundred eight".