163165158 has 64 divisors (see below), whose sum is σ = 400075200. Its totient is φ = 48971520.

The previous prime is 163165157. The next prime is 163165159. The reversal of 163165158 is 851561361.

163165158 is a `hidden beast` number, since 1 + 631 + 6 + 5 + 15 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (163165157) and next prime (163165159).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163165157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25948 + ... + 31616.

It is an arithmetic number, because the mean of its divisors is an integer number (6251175).

Almost surely, 2^163165158 is an apocalyptic number.

163165158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 163165158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200037600).

163165158 is an abundant number, since it is smaller than the sum of its proper divisors (236910042).

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

163165158 is a wasteful number, since it uses less digits than its factorization.

163165158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5734 (or 5728 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 163165158 is about 12773.6117836734. The cubic root of 163165158 is about 546.4399907099.

The spelling of 163165158 in words is "one hundred sixty-three million, one hundred sixty-five thousand, one hundred fifty-eight".