163313332 has 96 divisors (see below), whose sum is σ = 373008384. Its totient is φ = 60825600.

The previous prime is 163313327. The next prime is 163313333. The reversal of 163313332 is 233313361.

It is a junction number, because it is equal to n+sod(n) for n = 163313297 and 163313306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163313333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462468 + ... + 462820.

It is an arithmetic number, because the mean of its divisors is an integer number (3885504).

Almost surely, 2^163313332 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 163313332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186504192).

163313332 is an abundant number, since it is smaller than the sum of its proper divisors (209695052).

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

163313332 is a wasteful number, since it uses less digits than its factorization.

163313332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 447 counting only the distinct ones).

The product of its digits is 2916, while the sum is 25.

The square root of 163313332 is about 12779.4104715358. The cubic root of 163313332 is about 546.6053522018.

Adding to 163313332 its reverse (233313361), we get a palindrome (396626693).

The spelling of 163313332 in words is "one hundred sixty-three million, three hundred thirteen thousand, three hundred thirty-two".