56461041711561 has 16 divisors (see below), whose sum is σ = 75989886594624. Its totient is φ = 37288016601024.

The previous prime is 56461041711541. The next prime is 56461041711593. The reversal of 56461041711561 is 16511714016465.

It is not a de Polignac number, because 56461041711561 - 2¹⁵ = 56461041678793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56461041711561.

It is not an unprimeable number, because it can be changed into a prime (56461041711541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196224711 + ... + 196512236.

It is an arithmetic number, because the mean of its divisors is an integer number (4749367912164).

Almost surely, 2^{56461041711561} is an apocalyptic number.

It is an amenable number.

56461041711561 is a deficient number, since it is larger than the sum of its proper divisors (19528844883063).

56461041711561 is a wasteful number, since it uses less digits than its factorization.

56461041711561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392737400.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 56461041711561 in words is "fifty-six trillion, four hundred sixty-one billion, forty-one million, seven hundred eleven thousand, five hundred sixty-one".