163344172 has 6 divisors (see below), whose sum is σ = 285852308. Its totient is φ = 81672084.

The previous prime is 163344163. The next prime is 163344179. The reversal of 163344172 is 271443361.

It is not an unprimeable number, because it can be changed into a prime (163344179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20418018 + ... + 20418025.

Almost surely, 2^163344172 is an apocalyptic number.

It is an amenable number.

163344172 is a deficient number, since it is larger than the sum of its proper divisors (122508136).

163344172 is a wasteful number, since it uses less digits than its factorization.

163344172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40836047 (or 40836045 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 163344172 is about 12780.6170430070. The cubic root of 163344172 is about 546.6397569211.

The spelling of 163344172 in words is "one hundred sixty-three million, three hundred forty-four thousand, one hundred seventy-two".