56444360005161 has 20 divisors (see below), whose sum is σ = 84402689986692. Its totient is φ = 37591830481248.

The previous prime is 56444360005123. The next prime is 56444360005213. The reversal of 56444360005161 is 16150006344465.

56444360005161 is a `hidden beast` number, since 5 + 64 + 44 + 36 + 0 + 0 + 0 + 516 + 1 = 666.

56444360005161 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 2 ways, for example, as 43774896387600 + 12669463617561 = 6616260^2 + 3559419^2 .

It is not a de Polignac number, because 56444360005161 - 2¹⁵ = 56444359972393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56444360009161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 349389630 + ... + 349551143.

Almost surely, 2^{56444360005161} is an apocalyptic number.

It is an amenable number.

56444360005161 is a deficient number, since it is larger than the sum of its proper divisors (27958329981531).

56444360005161 is an equidigital number, since it uses as much as digits as its factorization.

56444360005161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698941782 (or 698941773 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 56444360005161 in words is "fifty-six trillion, four hundred forty-four billion, three hundred sixty million, five thousand, one hundred sixty-one".