561131664030255 has 8 divisors (see below), whose sum is σ = 897810662448432. Its totient is φ = 299270220816128.

The previous prime is 561131664030229. The next prime is 561131664030317. The reversal of 561131664030255 is 552030466131165.

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 561131664030255 - 2⁹ = 561131664029743 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, 18704388800994 + ... + 18704388801023.

It is an arithmetic number, because the mean of its divisors is an integer number (112226332806054).

Almost surely, 2^{561131664030255} is an apocalyptic number.

561131664030255 is a deficient number, since it is larger than the sum of its proper divisors (336678998418177).

561131664030255 is a wasteful number, since it uses less digits than its factorization.

561131664030255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37408777602025.

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 561131664030255 in words is "five hundred sixty-one trillion, one hundred thirty-one billion, six hundred sixty-four million, thirty thousand, two hundred fifty-five".