163955568 has 60 divisors (see below), whose sum is σ = 492710280. Its totient is φ = 46843776.

The previous prime is 163955567. The next prime is 163955593. The reversal of 163955568 is 865559361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163955563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32503 + ... + 37206.

It is an arithmetic number, because the mean of its divisors is an integer number (8211838).

Almost surely, 2^163955568 is an apocalyptic number.

It is an amenable number.

163955568 is an abundant number, since it is smaller than the sum of its proper divisors (328754712).

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

163955568 is a wasteful number, since it uses less digits than its factorization.

163955568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69734 (or 69721 counting only the distinct ones).

The product of its digits is 972000, while the sum is 48.

The square root of 163955568 is about 12804.5135792032. The cubic root of 163955568 is about 547.3209305756.

The spelling of 163955568 in words is "one hundred sixty-three million, nine hundred fifty-five thousand, five hundred sixty-eight".