561069960165 has 64 divisors (see below), whose sum is σ = 1171838465280. Its totient is φ = 251108225280.

The previous prime is 561069960137. The next prime is 561069960179.

561069960165 is a `hidden beast` number, since 5 + 610 + 6 + 9 + 9 + 6 + 0 + 16 + 5 = 666.

561069960165 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 561069960165 - 2⁵ = 561069960133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14512422 + ... + 14551031.

It is an arithmetic number, because the mean of its divisors is an integer number (18309976020).

Almost surely, 2^561069960165 is an apocalyptic number.

561069960165 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561069960165 is an abundant number, since it is smaller than the sum of its proper divisors (610768505115).

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

561069960165 is a wasteful number, since it uses less digits than its factorization.

561069960165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29063491 (or 29063485 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The spelling of 561069960165 in words is "five hundred sixty-one billion, sixty-nine million, nine hundred sixty thousand, one hundred sixty-five".