199997998200 has 1728 divisors, whose sum is σ = 932905602720. Its totient is φ = 37739520000.

The previous prime is 199997998177. The next prime is 199997998217. The reversal of 199997998200 is 2899799991.

199997998200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 1273872522 + ... + 1273872678.

Almost surely, 2^199997998200 is an apocalyptic number.

199997998200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199997998200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466452801360).

199997998200 is an abundant number, since it is smaller than the sum of its proper divisors (732907604520).

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

199997998200 is a wasteful number, since it uses less digits than its factorization.

199997998200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 59521392, while the sum is 72.

The spelling of 199997998200 in words is "one hundred ninety-nine billion, nine hundred ninety-seven million, nine hundred ninety-eight thousand, two hundred".