163533473632 has 144 divisors (see below), whose sum is σ = 360920629440. Its totient is φ = 72675864576.

The previous prime is 163533473611. The next prime is 163533473639. The reversal of 163533473632 is 236374335361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163533473639) 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 23 ways as a sum of consecutive naturals, for example, 72071794 + ... + 72074062.

It is an arithmetic number, because the mean of its divisors is an integer number (2506393260).

Almost surely, 2^163533473632 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 163533473632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180460314720).

163533473632 is an abundant number, since it is smaller than the sum of its proper divisors (197387155808).

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

163533473632 is a wasteful number, since it uses less digits than its factorization.

163533473632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701 (or 2674 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 46.

The spelling of 163533473632 in words is "one hundred sixty-three billion, five hundred thirty-three million, four hundred seventy-three thousand, six hundred thirty-two".