198200919100 has 36 divisors (see below), whose sum is σ = 440098236424. Its totient is φ = 77436636480.

The previous prime is 198200919083. The next prime is 198200919197. The reversal of 198200919100 is 1919002891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23042319 + ... + 23050918.

Almost surely, 2^198200919100 is an apocalyptic number.

198200919100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198200919100 is an abundant number, since it is smaller than the sum of its proper divisors (241897317324).

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

198200919100 is a wasteful number, since it uses less digits than its factorization.

198200919100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46093294 (or 46093287 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 40.

The spelling of 198200919100 in words is "one hundred ninety-eight billion, two hundred million, nine hundred nineteen thousand, one hundred".