561723364594176 has 160 divisors (see below), whose sum is σ = 1544985779724288. Its totient is φ = 181172167249920.

The previous prime is 561723364594169. The next prime is 561723364594181. The reversal of 561723364594176 is 671495463327165.

It is a self number, because there is not a number n which added to its sum of digits gives 561723364594176.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298423591 + ... + 300299993.

Almost surely, 2^{561723364594176} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561723364594176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772492889862144).

561723364594176 is an abundant number, since it is smaller than the sum of its proper divisors (983262415130112).

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

561723364594176 is a wasteful number, since it uses less digits than its factorization.

561723364594176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882742 (or 1882726 counting only the distinct ones).

The product of its digits is 685843200, while the sum is 69.

The spelling of 561723364594176 in words is "five hundred sixty-one trillion, seven hundred twenty-three billion, three hundred sixty-four million, five hundred ninety-four thousand, one hundred seventy-six".