163223316 has 24 divisors (see below), whose sum is σ = 423171840. Its totient is φ = 54407736.

The previous prime is 163223309. The next prime is 163223327. The reversal of 163223316 is 613322361.

It is a happy number.

163223316 is a `hidden beast` number, since 1 + 6 + 322 + 331 + 6 = 666.

163223316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a self number, because there is not a number n which added to its sum of digits gives 163223316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755556 + ... + 755771.

It is an arithmetic number, because the mean of its divisors is an integer number (17632160).

Almost surely, 2^163223316 is an apocalyptic number.

It is an amenable number.

163223316 is an abundant number, since it is smaller than the sum of its proper divisors (259948524).

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

163223316 is a wasteful number, since it uses less digits than its factorization.

163223316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511340 (or 1511332 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 163223316 is about 12775.8880708935. Note that the first 3 decimals coincide. The cubic root of 163223316 is about 546.5049066970.

Adding to 163223316 its reverse (613322361), we get a palindrome (776545677).

The spelling of 163223316 in words is "one hundred sixty-three million, two hundred twenty-three thousand, three hundred sixteen".