198066318 has 8 divisors (see below), whose sum is σ = 396132648. Its totient is φ = 66022104.

The previous prime is 198066313. The next prime is 198066343. The reversal of 198066318 is 813660891.

198066318 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

198066318 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 198066318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198066313) 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 3 ways as a sum of consecutive naturals, for example, 16505521 + ... + 16505532.

It is an arithmetic number, because the mean of its divisors is an integer number (49516581).

Almost surely, 2^198066318 is an apocalyptic number.

198066318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

198066318 is a wasteful number, since it uses less digits than its factorization.

198066318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33011058.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 198066318 is about 14073.6035896994. The cubic root of 198066318 is about 582.9127339429.

The spelling of 198066318 in words is "one hundred ninety-eight million, sixty-six thousand, three hundred eighteen".