56445556561163 has 64 divisors (see below), whose sum is σ = 79052665651200. Its totient is φ = 38908729520640.

The previous prime is 56445556561117. The next prime is 56445556561291. The reversal of 56445556561163 is 36116565554465.

It is not a de Polignac number, because 56445556561163 - 2⁶ = 56445556561099 is a prime.

It is a super-2 number, since 2×56445556561163² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56445556561096 and 56445556561105.

It is not an unprimeable number, because it can be changed into a prime (56445556561063) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5776553 + ... + 12093786.

It is an arithmetic number, because the mean of its divisors is an integer number (1235197900800).

Almost surely, 2^{56445556561163} is an apocalyptic number.

56445556561163 is a deficient number, since it is larger than the sum of its proper divisors (22607109090037).

56445556561163 is a wasteful number, since it uses less digits than its factorization.

56445556561163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17870520.

The product of its digits is 194400000, while the sum is 62.

The spelling of 56445556561163 in words is "fifty-six trillion, four hundred forty-five billion, five hundred fifty-six million, five hundred sixty-one thousand, one hundred sixty-three".