56865466456865 has 128 divisors (see below), whose sum is σ = 78593431680000. Its totient is φ = 39119492608000.

The previous prime is 56865466456823. The next prime is 56865466456867.

56865466456865 is nontrivially palindromic in base 10.

56865466456865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56865466456865 - 2³⁰ = 56864392715041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56865466456865.

It is not an unprimeable number, because it can be changed into a prime (56865466456867) 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 127 ways as a sum of consecutive naturals, for example, 6456844292 + ... + 6456853098.

It is an arithmetic number, because the mean of its divisors is an integer number (614011185000).

Almost surely, 2^{56865466456865} is an apocalyptic number.

56865466456865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56865466456865 is a deficient number, since it is larger than the sum of its proper divisors (21727965223135).

56865466456865 is a wasteful number, since it uses less digits than its factorization.

56865466456865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9371.

The product of its digits is 29859840000, while the sum is 80.

The spelling of 56865466456865 in words is "fifty-six trillion, eight hundred sixty-five billion, four hundred sixty-six million, four hundred fifty-six thousand, eight hundred sixty-five".