195566338 has 16 divisors (see below), whose sum is σ = 320947200. Its totient is φ = 88635600.

The previous prime is 195566333. The next prime is 195566339. The reversal of 195566338 is 833665591.

It is not an unprimeable number, because it can be changed into a prime (195566333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5058 + ... + 20413.

It is an arithmetic number, because the mean of its divisors is an integer number (20059200).

Almost surely, 2^195566338 is an apocalyptic number.

195566338 is a deficient number, since it is larger than the sum of its proper divisors (125380862).

195566338 is a wasteful number, since it uses less digits than its factorization.

195566338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25833.

The product of its digits is 583200, while the sum is 46.

The square root of 195566338 is about 13984.5034949404. The cubic root of 195566338 is about 580.4498472039.

The spelling of 195566338 in words is "one hundred ninety-five million, five hundred sixty-six thousand, three hundred thirty-eight".