163646223 has 8 divisors (see below), whose sum is σ = 234979248. Its totient is φ = 100705344.

The previous prime is 163646213. The next prime is 163646239. The reversal of 163646223 is 322646361.

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

It is not a de Polignac number, because 163646223 - 2⁴ = 163646207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163646213) 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, 2097990 + ... + 2098067.

It is an arithmetic number, because the mean of its divisors is an integer number (29372406).

Almost surely, 2^163646223 is an apocalyptic number.

163646223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

163646223 is a deficient number, since it is larger than the sum of its proper divisors (71333025).

163646223 is a wasteful number, since it uses less digits than its factorization.

163646223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4196073.

The product of its digits is 31104, while the sum is 33.

The square root of 163646223 is about 12792.4283464868. The cubic root of 163646223 is about 546.9764925667.

The spelling of 163646223 in words is "one hundred sixty-three million, six hundred forty-six thousand, two hundred twenty-three".