680601108305 has 24 divisors (see below), whose sum is σ = 855970937640. Its totient is φ = 519468181760.

The previous prime is 680601108283. The next prime is 680601108307. The reversal of 680601108305 is 503801106086.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 119469774736 + 561131333569 = 345644^2 + 749087^2 .

It is not a de Polignac number, because 680601108305 - 2¹⁴ = 680601091921 is a prime.

It is a super-3 number, since 3×680601108305³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (680601108307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 698165 + ... + 1359645.

It is an arithmetic number, because the mean of its divisors is an integer number (35665455735).

Almost surely, 2^680601108305 is an apocalyptic number.

It is an amenable number.

680601108305 is a deficient number, since it is larger than the sum of its proper divisors (175369829335).

680601108305 is a wasteful number, since it uses less digits than its factorization.

680601108305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661921 (or 661898 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 680601108305 in words is "six hundred eighty billion, six hundred one million, one hundred eight thousand, three hundred five".