56016561105 has 24 divisors (see below), whose sum is σ = 97106848488. Its totient is φ = 29871968256.

The previous prime is 56016561061. The next prime is 56016561151. The reversal of 56016561105 is 50116561065.

56016561105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2893686849 + 53122874256 = 53793^2 + 230484^2 .

It is not a de Polignac number, because 56016561105 - 2¹⁴ = 56016544721 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56016561105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336529 + ... + 474641.

It is an arithmetic number, because the mean of its divisors is an integer number (4046118687).

Almost surely, 2^56016561105 is an apocalyptic number.

It is an amenable number.

56016561105 is a deficient number, since it is larger than the sum of its proper divisors (41090287383).

56016561105 is a wasteful number, since it uses less digits than its factorization.

56016561105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147137 (or 147134 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 56016561105 in words is "fifty-six billion, sixteen million, five hundred sixty-one thousand, one hundred five".