163506222 has 32 divisors (see below), whose sum is σ = 396380160. Its totient is φ = 49547160.

The previous prime is 163506199. The next prime is 163506269. The reversal of 163506222 is 222605361.

163506222 is a `hidden beast` number, since 1 + 6 + 35 + 0 + 622 + 2 = 666.

163506222 is digitally balanced in base 3, 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137038 + ... + 138225.

It is an arithmetic number, because the mean of its divisors is an integer number (12386880).

Almost surely, 2^163506222 is an apocalyptic number.

163506222 is an abundant number, since it is smaller than the sum of its proper divisors (232873938).

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

163506222 is a wasteful number, since it uses less digits than its factorization.

163506222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275285 (or 275279 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 163506222 is about 12786.9551496828. The cubic root of 163506222 is about 546.8204667560.

The spelling of 163506222 in words is "one hundred sixty-three million, five hundred six thousand, two hundred twenty-two".