561136631165 has 8 divisors (see below), whose sum is σ = 734578862688. Its totient is φ = 408099368080.

The previous prime is 561136631147. The next prime is 561136631179.

561136631165 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 561136631165 - 2⁶ = 561136631101 is a prime.

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, 5101242047 + ... + 5101242156.

It is an arithmetic number, because the mean of its divisors is an integer number (91822357836).

Almost surely, 2^561136631165 is an apocalyptic number.

561136631165 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561136631165 is a deficient number, since it is larger than the sum of its proper divisors (173442231523).

561136631165 is a wasteful number, since it uses less digits than its factorization.

561136631165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10202484219.

The product of its digits is 291600, while the sum is 44.

The spelling of 561136631165 in words is "five hundred sixty-one billion, one hundred thirty-six million, six hundred thirty-one thousand, one hundred sixty-five".