198816164 has 12 divisors (see below), whose sum is σ = 348049884. Its totient is φ = 99373344.

The previous prime is 198816161. The next prime is 198816179. The reversal of 198816164 is 461618891.

It can be written as a sum of positive squares in 2 ways, for example, as 2592100 + 196224064 = 1610^2 + 14008^2 .

It is not an unprimeable number, because it can be changed into a prime (198816161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7574 + ... + 21330.

It is an arithmetic number, because the mean of its divisors is an integer number (29004157).

Almost surely, 2^198816164 is an apocalyptic number.

It is an amenable number.

198816164 is a deficient number, since it is larger than the sum of its proper divisors (149233720).

198816164 is a wasteful number, since it uses less digits than its factorization.

198816164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17374 (or 17372 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 198816164 is about 14100.2185798661. The cubic root of 198816164 is about 583.6474110185.

The spelling of 198816164 in words is "one hundred ninety-eight million, eight hundred sixteen thousand, one hundred sixty-four".