163605632 has 32 divisors (see below), whose sum is σ = 329318220. Its totient is φ = 80953344.

The previous prime is 163605613. The next prime is 163605667. The reversal of 163605632 is 236506361.

163605632 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 2 ways, for example, as 163226176 + 379456 = 12776^2 + 616^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5828 + ... + 19004.

Almost surely, 2^163605632 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 163605632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164659110).

163605632 is an abundant number, since it is smaller than the sum of its proper divisors (165712588).

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

163605632 is an equidigital number, since it uses as much as digits as its factorization.

163605632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13288 (or 13276 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 163605632 is about 12790.8417236709. The cubic root of 163605632 is about 546.9312645980.

The spelling of 163605632 in words is "one hundred sixty-three million, six hundred five thousand, six hundred thirty-two".