163311044 has 48 divisors (see below), whose sum is σ = 334757808. Its totient is φ = 69009408.

The previous prime is 163311013. The next prime is 163311047. The reversal of 163311044 is 440113361.

163311044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1716100 + 161594944 = 1310^2 + 12712^2 .

It is not an unprimeable number, because it can be changed into a prime (163311047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30212 + ... + 35204.

It is an arithmetic number, because the mean of its divisors is an integer number (6974121).

Almost surely, 2^163311044 is an apocalyptic number.

It is an amenable number.

163311044 is an abundant number, since it is smaller than the sum of its proper divisors (171446764).

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

163311044 is a wasteful number, since it uses less digits than its factorization.

163311044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5064 (or 5062 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 163311044 is about 12779.3209522259. The cubic root of 163311044 is about 546.6027995649.

The spelling of 163311044 in words is "one hundred sixty-three million, three hundred eleven thousand, forty-four".