680156858316 has 24 divisors (see below), whose sum is σ = 1709112105904. Its totient is φ = 209279033280.

The previous prime is 680156858287. The next prime is 680156858317. The reversal of 680156858316 is 613858651086.

It is a super-2 number, since 2×680156858316² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680156858317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179989775 + ... + 2179990086.

Almost surely, 2^680156858316 is an apocalyptic number.

It is an amenable number.

680156858316 is an abundant number, since it is smaller than the sum of its proper divisors (1028955247588).

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

680156858316 is a wasteful number, since it uses less digits than its factorization.

680156858316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4359979881 (or 4359979879 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 57.

The spelling of 680156858316 in words is "six hundred eighty billion, one hundred fifty-six million, eight hundred fifty-eight thousand, three hundred sixteen".