163538368 has 112 divisors (see below), whose sum is σ = 398312640. Its totient is φ = 65028096.

The previous prime is 163538363. The next prime is 163538371. The reversal of 163538368 is 863835361.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163538363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830046 + ... + 830242.

Almost surely, 2^163538368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163538368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199156320).

163538368 is an abundant number, since it is smaller than the sum of its proper divisors (234774272).

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

163538368 is a wasteful number, since it uses less digits than its factorization.

163538368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 332 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 163538368 is about 12788.2120720607. The cubic root of 163538368 is about 546.8563001301.

The spelling of 163538368 in words is "one hundred sixty-three million, five hundred thirty-eight thousand, three hundred sixty-eight".