561000685017 has 16 divisors (see below), whose sum is σ = 806573517120. Its totient is φ = 345674361600.

The previous prime is 561000684983. The next prime is 561000685019. The reversal of 561000685017 is 710586000165.

It is not a de Polignac number, because 561000685017 - 2²⁷ = 560866467289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561000685019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120023484 + ... + 120028157.

It is an arithmetic number, because the mean of its divisors is an integer number (50410844820).

Almost surely, 2^561000685017 is an apocalyptic number.

561000685017 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

561000685017 is a deficient number, since it is larger than the sum of its proper divisors (245572832103).

561000685017 is a wasteful number, since it uses less digits than its factorization.

561000685017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240051704.

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 561000685017 in words is "five hundred sixty-one billion, six hundred eighty-five thousand, seventeen".