163375885 has 4 divisors (see below), whose sum is σ = 196051068. Its totient is φ = 130700704.

The previous prime is 163375867. The next prime is 163375907. The reversal of 163375885 is 588573361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74978281 + 88397604 = 8659^2 + 9402^2 .

It is a cyclic number.

It is not a de Polignac number, because 163375885 - 2⁵ = 163375853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16337584 + ... + 16337593.

It is an arithmetic number, because the mean of its divisors is an integer number (49012767).

Almost surely, 2^163375885 is an apocalyptic number.

It is an amenable number.

163375885 is a deficient number, since it is larger than the sum of its proper divisors (32675183).

163375885 is an equidigital number, since it uses as much as digits as its factorization.

163375885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32675182.

The product of its digits is 604800, while the sum is 46.

The square root of 163375885 is about 12781.8576505921. The cubic root of 163375885 is about 546.6751310326.

It can be divided in two parts, 16337 and 5885, that added together give a palindrome (22222).

The spelling of 163375885 in words is "one hundred sixty-three million, three hundred seventy-five thousand, eight hundred eighty-five".