563563161 has 72 divisors (see below), whose sum is σ = 1007997120. Its totient is φ = 301662144.

The previous prime is 563563157. The next prime is 563563211. The reversal of 563563161 is 161365365.

563563161 is a `hidden beast` number, since 5 + 635 + 6 + 3 + 16 + 1 = 666.

It is not a de Polignac number, because 563563161 - 2² = 563563157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (563563261) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 862711 + ... + 863363.

It is an arithmetic number, because the mean of its divisors is an integer number (13999960).

Almost surely, 2^563563161 is an apocalyptic number.

It is an amenable number.

563563161 is a deficient number, since it is larger than the sum of its proper divisors (444433959).

563563161 is a wasteful number, since it uses less digits than its factorization.

563563161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 785 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 563563161 is about 23739.4852724317. The cubic root of 563563161 is about 826.0015560633.

The spelling of 563563161 in words is "five hundred sixty-three million, five hundred sixty-three thousand, one hundred sixty-one".