163565632 has 28 divisors (see below), whose sum is σ = 330706476. Its totient is φ = 80238080.

The previous prime is 163565617. The next prime is 163565681. The reversal of 163565632 is 236565361.

It can be written as a sum of positive squares in 2 ways, for example, as 53231616 + 110334016 = 7296^2 + 10504^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 163565591 and 163565600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20719 + ... + 27502.

Almost surely, 2^163565632 is an apocalyptic number.

It is an amenable number.

163565632 is an abundant number, since it is smaller than the sum of its proper divisors (167140844).

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

163565632 is an equidigital number, since it uses as much as digits as its factorization.

163565632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48286 (or 48276 counting only the distinct ones).

The product of its digits is 97200, while the sum is 37.

The square root of 163565632 is about 12789.2780093327. The cubic root of 163565632 is about 546.8866878242.

The spelling of 163565632 in words is "one hundred sixty-three million, five hundred sixty-five thousand, six hundred thirty-two".