163420563 has 8 divisors (see below), whose sum is σ = 218106000. Its totient is φ = 108841088.

The previous prime is 163420553. The next prime is 163420567. The reversal of 163420563 is 365024361.

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

It is a cyclic number.

It is not a de Polignac number, because 163420563 - 2⁵ = 163420531 is a prime.

It is a super-2 number, since 2×163420563² = 53412560822473938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163420563.

It is not an unprimeable number, because it can be changed into a prime (163420567) 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, 22818 + ... + 29111.

It is an arithmetic number, because the mean of its divisors is an integer number (27263250).

Almost surely, 2^163420563 is an apocalyptic number.

163420563 is a deficient number, since it is larger than the sum of its proper divisors (54685437).

163420563 is a wasteful number, since it uses less digits than its factorization.

163420563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52981.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 163420563 is about 12783.6052426536. The cubic root of 163420563 is about 546.7249591237.

The spelling of 163420563 in words is "one hundred sixty-three million, four hundred twenty thousand, five hundred sixty-three".