561715382085 has 192 divisors, whose sum is σ = 1102353573888. Its totient is φ = 242364672000.

The previous prime is 561715382077. The next prime is 561715382087. The reversal of 561715382085 is 580283517165.

It is not a de Polignac number, because 561715382085 - 2³ = 561715382077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561715382087) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 214312075 + ... + 214314695.

It is an arithmetic number, because the mean of its divisors is an integer number (5741424864).

Almost surely, 2^561715382085 is an apocalyptic number.

561715382085 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561715382085 is a deficient number, since it is larger than the sum of its proper divisors (540638191803).

561715382085 is a wasteful number, since it uses less digits than its factorization.

561715382085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988 (or 2977 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 51.

The spelling of 561715382085 in words is "five hundred sixty-one billion, seven hundred fifteen million, three hundred eighty-two thousand, eighty-five".