163443164 has 12 divisors (see below), whose sum is σ = 286165488. Its totient is φ = 81681600.

The previous prime is 163443121. The next prime is 163443169. The reversal of 163443164 is 461344361.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 163443164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163443169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404 + ... + 18084.

It is an arithmetic number, because the mean of its divisors is an integer number (23847124).

Almost surely, 2^163443164 is an apocalyptic number.

It is an amenable number.

163443164 is a deficient number, since it is larger than the sum of its proper divisors (122722324).

163443164 is a wasteful number, since it uses less digits than its factorization.

163443164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19996 (or 19994 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 163443164 is about 12784.4891958967. The cubic root of 163443164 is about 546.7501619112.

The spelling of 163443164 in words is "one hundred sixty-three million, four hundred forty-three thousand, one hundred sixty-four".