561885424588165 has 8 divisors (see below), whose sum is σ = 680448404089080. Its totient is φ = 445384409948352.

The previous prime is 561885424588133. The next prime is 561885424588193.

561885424588165 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 259248673642401 + 302636750945764 = 16101201^2 + 17396458^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561885424588165 - 2⁵ = 561885424588133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561885424588091 and 561885424588100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515491214674 + ... + 515491215763.

It is an arithmetic number, because the mean of its divisors is an integer number (85056050511135).

Almost surely, 2^{561885424588165} is an apocalyptic number.

It is an amenable number.

561885424588165 is a deficient number, since it is larger than the sum of its proper divisors (118562979500915).

561885424588165 is a wasteful number, since it uses less digits than its factorization.

561885424588165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030982430551.

The product of its digits is 2949120000, while the sum is 76.

The spelling of 561885424588165 in words is "five hundred sixty-one trillion, eight hundred eighty-five billion, four hundred twenty-four million, five hundred eighty-eight thousand, one hundred sixty-five".