163563560 has 16 divisors (see below), whose sum is σ = 368018100. Its totient is φ = 65425408.

The previous prime is 163563553. The next prime is 163563563. The reversal of 163563560 is 65365361.

163563560 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 148986436 + 14577124 = 12206^2 + 3818^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163563560.

It is not an unprimeable number, because it can be changed into a prime (163563563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2044505 + ... + 2044584.

Almost surely, 2^163563560 is an apocalyptic number.

163563560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163563560 is an abundant number, since it is smaller than the sum of its proper divisors (204454540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163563560 is a wasteful number, since it uses less digits than its factorization.

163563560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089100 (or 4089096 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 163563560 is about 12789.1970037215. The cubic root of 163563560 is about 546.8843785494.

The spelling of 163563560 in words is "one hundred sixty-three million, five hundred sixty-three thousand, five hundred sixty".