163311144 has 32 divisors (see below), whose sum is σ = 408672000. Its totient is φ = 54384512.

The previous prime is 163311143. The next prime is 163311149. The reversal of 163311144 is 441113361.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (163311143) 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, 28297 + ... + 33575.

It is an arithmetic number, because the mean of its divisors is an integer number (12771000).

Almost surely, 2^163311144 is an apocalyptic number.

It is an amenable number.

163311144 is an abundant number, since it is smaller than the sum of its proper divisors (245360856).

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

163311144 is a wasteful number, since it uses less digits than its factorization.

163311144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577 (or 6573 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 163311144 is about 12779.3248647963. The cubic root of 163311144 is about 546.6029111317.

The spelling of 163311144 in words is "one hundred sixty-three million, three hundred eleven thousand, one hundred forty-four".