198595001992 has 32 divisors (see below), whose sum is σ = 392186836800. Its totient is φ = 94092543424.

The previous prime is 198595001959. The next prime is 198595002157. The reversal of 198595001992 is 299100595891.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5023867 + ... + 5063242.

It is an arithmetic number, because the mean of its divisors is an integer number (12255838650).

Almost surely, 2^198595001992 is an apocalyptic number.

It is an amenable number.

198595001992 is a deficient number, since it is larger than the sum of its proper divisors (193591834808).

198595001992 is a wasteful number, since it uses less digits than its factorization.

198595001992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10087245 (or 10087241 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 58.

The spelling of 198595001992 in words is "one hundred ninety-eight billion, five hundred ninety-five million, one thousand, nine hundred ninety-two".