163318416 has 80 divisors (see below), whose sum is σ = 446304768. Its totient is φ = 51379200.

The previous prime is 163318381. The next prime is 163318417. The reversal of 163318416 is 614813361.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (163318417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59670 + ... + 62346.

Almost surely, 2^163318416 is an apocalyptic number.

163318416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163318416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223152384).

163318416 is an abundant number, since it is smaller than the sum of its proper divisors (282986352).

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

163318416 is a wasteful number, since it uses less digits than its factorization.

163318416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760 (or 2754 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 163318416 is about 12779.6093837018. The cubic root of 163318416 is about 546.6110241469.

The spelling of 163318416 in words is "one hundred sixty-three million, three hundred eighteen thousand, four hundred sixteen".