163099968 has 56 divisors (see below), whose sum is σ = 442081920. Its totient is φ = 53038080.

The previous prime is 163099961. The next prime is 163099999. The reversal of 163099968 is 869990361.

It is a self number, because there is not a number n which added to its sum of digits gives 163099968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163099961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2488 + ... + 18231.

It is an arithmetic number, because the mean of its divisors is an integer number (7894320).

Almost surely, 2^163099968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163099968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221040960).

163099968 is an abundant number, since it is smaller than the sum of its proper divisors (278981952).

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

163099968 is a wasteful number, since it uses less digits than its factorization.

163099968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20775 (or 20765 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 163099968 is about 12771.0597837454. The cubic root of 163099968 is about 546.3672072623.

The spelling of 163099968 in words is "one hundred sixty-three million, ninety-nine thousand, nine hundred sixty-eight".