198075168 has 72 divisors (see below), whose sum is σ = 564677568. Its totient is φ = 65860992.

The previous prime is 198075167. The next prime is 198075181. The reversal of 198075168 is 861570891.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (198075167) 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, 185805 + ... + 186867.

It is an arithmetic number, because the mean of its divisors is an integer number (7842744).

Almost surely, 2^198075168 is an apocalyptic number.

198075168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198075168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282338784).

198075168 is an abundant number, since it is smaller than the sum of its proper divisors (366602400).

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

198075168 is a wasteful number, since it uses less digits than its factorization.

198075168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 198075168 is about 14073.9180045928. The cubic root of 198075168 is about 582.9214157167.

The spelling of 198075168 in words is "one hundred ninety-eight million, seventy-five thousand, one hundred sixty-eight".