561580214961 has 32 divisors (see below), whose sum is σ = 799247194240. Its totient is φ = 349706502144.

The previous prime is 561580214929. The next prime is 561580214977. The reversal of 561580214961 is 169412085165.

It is not a de Polignac number, because 561580214961 - 2⁵ = 561580214929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 561580214961.

It is not an unprimeable number, because it can be changed into a prime (561580214761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13364961 + ... + 13406913.

It is an arithmetic number, because the mean of its divisors is an integer number (24976474820).

Almost surely, 2^561580214961 is an apocalyptic number.

It is an amenable number.

561580214961 is a deficient number, since it is larger than the sum of its proper divisors (237666979279).

561580214961 is a wasteful number, since it uses less digits than its factorization.

561580214961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45265.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 561580214961 in words is "five hundred sixty-one billion, five hundred eighty million, two hundred fourteen thousand, nine hundred sixty-one".