545561163 has 40 divisors (see below), whose sum is σ = 937271808. Its totient is φ = 309784176.

The previous prime is 545561153. The next prime is 545561179. The reversal of 545561163 is 361165545.

545561163 is a `hidden beast` number, since 545 + 56 + 1 + 1 + 63 = 666.

It is not a de Polignac number, because 545561163 - 2⁸ = 545560907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545561153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 89470 + ... + 95372.

Almost surely, 2^545561163 is an apocalyptic number.

545561163 is a deficient number, since it is larger than the sum of its proper divisors (391710645).

545561163 is a wasteful number, since it uses less digits than its factorization.

545561163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6085 (or 6076 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 545561163 is about 23357.2507585974. The cubic root of 545561163 is about 817.1111727213. Note that the first 4 decimals are identical.

The spelling of 545561163 in words is "five hundred forty-five million, five hundred sixty-one thousand, one hundred sixty-three".