198360065 has 16 divisors (see below), whose sum is σ = 242870400. Its totient is φ = 155480832.

The previous prime is 198360049. The next prime is 198360067. The reversal of 198360065 is 560063891.

It is a cyclic number.

It is not a de Polignac number, because 198360065 - 2⁴ = 198360049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198360067) 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 15 ways as a sum of consecutive naturals, for example, 104969 + ... + 106841.

It is an arithmetic number, because the mean of its divisors is an integer number (15179400).

Almost surely, 2^198360065 is an apocalyptic number.

It is an amenable number.

198360065 is a deficient number, since it is larger than the sum of its proper divisors (44510335).

198360065 is a wasteful number, since it uses less digits than its factorization.

198360065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 198360065 is about 14084.0358207440. The cubic root of 198360065 is about 583.2007591692.

The spelling of 198360065 in words is "one hundred ninety-eight million, three hundred sixty thousand, sixty-five".