163564422 has 16 divisors (see below), whose sum is σ = 373861632. Its totient is φ = 46732680.

The previous prime is 163564409. The next prime is 163564433. The reversal of 163564422 is 224465361.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1947154 + ... + 1947237.

It is an arithmetic number, because the mean of its divisors is an integer number (23366352).

Almost surely, 2^163564422 is an apocalyptic number.

163564422 is an abundant number, since it is smaller than the sum of its proper divisors (210297210).

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

163564422 is a wasteful number, since it uses less digits than its factorization.

163564422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894403.

The product of its digits is 34560, while the sum is 33.

The square root of 163564422 is about 12789.2307039947. The cubic root of 163564422 is about 546.8853392636.

The spelling of 163564422 in words is "one hundred sixty-three million, five hundred sixty-four thousand, four hundred twenty-two".