199115017000 has 64 divisors (see below), whose sum is σ = 468369008640. Its totient is φ = 79228936000.

The previous prime is 199115016979. The next prime is 199115017009. The reversal of 199115017000 is 710511991.

It is not an unprimeable number, because it can be changed into a prime (199115017009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330244 + ... + 712243.

It is an arithmetic number, because the mean of its divisors is an integer number (7318265760).

Almost surely, 2^199115017000 is an apocalyptic number.

199115017000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199115017000 is an abundant number, since it is smaller than the sum of its proper divisors (269253991640).

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

199115017000 is a wasteful number, since it uses less digits than its factorization.

199115017000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042699 (or 1042685 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 34.

Adding to 199115017000 its reverse (710511991), we get a palindrome (199825528991).

The spelling of 199115017000 in words is "one hundred ninety-nine billion, one hundred fifteen million, seventeen thousand".