163535166 has 48 divisors (see below), whose sum is σ = 383590800. Its totient is φ = 51636528.

The previous prime is 163535161. The next prime is 163535167. The reversal of 163535166 is 661535361.

163535166 is a `hidden beast` number, since 1 + 63 + 535 + 1 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 163535166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163535161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15300 + ... + 23688.

It is an arithmetic number, because the mean of its divisors is an integer number (7991475).

Almost surely, 2^163535166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163535166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191795400).

163535166 is an abundant number, since it is smaller than the sum of its proper divisors (220055634).

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

163535166 is a wasteful number, since it uses less digits than its factorization.

163535166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8438 (or 8413 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 163535166 is about 12788.0868780283. The cubic root of 163535166 is about 546.8527310486.

The spelling of 163535166 in words is "one hundred sixty-three million, five hundred thirty-five thousand, one hundred sixty-six".