163006563 has 8 divisors (see below), whose sum is σ = 217988368. Its totient is φ = 108347904.

The previous prime is 163006561. The next prime is 163006601. The reversal of 163006563 is 365600361.

163006563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163006563 - 2¹ = 163006561 is a prime.

It is a super-2 number, since 2×163006563² = 53142279162145938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163006563.

It is not an unprimeable number, because it can be changed into a prime (163006561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79606 + ... + 81627.

It is an arithmetic number, because the mean of its divisors is an integer number (27248546).

Almost surely, 2^163006563 is an apocalyptic number.

163006563 is a deficient number, since it is larger than the sum of its proper divisors (54981805).

163006563 is a wasteful number, since it uses less digits than its factorization.

163006563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161573.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 163006563 is about 12767.4023591332. The cubic root of 163006563 is about 546.2628884719.

The spelling of 163006563 in words is "one hundred sixty-three million, six thousand, five hundred sixty-three".