680101107085 has 4 divisors (see below), whose sum is σ = 816121328508. Its totient is φ = 544080885664.

The previous prime is 680101107079. The next prime is 680101107089. The reversal of 680101107085 is 580701101086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 384971852521 + 295129254564 = 620461^2 + 543258^2 .

It is a cyclic number.

It is not a de Polignac number, because 680101107085 - 2⁵ = 680101107053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680101107089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68010110704 + ... + 68010110713.

It is an arithmetic number, because the mean of its divisors is an integer number (204030332127).

Almost surely, 2^680101107085 is an apocalyptic number.

It is an amenable number.

680101107085 is a deficient number, since it is larger than the sum of its proper divisors (136020221423).

680101107085 is a wasteful number, since it uses less digits than its factorization.

680101107085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136020221422.

The product of its (nonzero) digits is 13440, while the sum is 37.

The spelling of 680101107085 in words is "six hundred eighty billion, one hundred one million, one hundred seven thousand, eighty-five".