198992025600 has 864 divisors, whose sum is σ = 718853990400. Its totient is φ = 48498278400.

The previous prime is 198992025581. The next prime is 198992025643. The reversal of 198992025600 is 6520299891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2518886361 + ... + 2518886439.

Almost surely, 2^198992025600 is an apocalyptic number.

198992025600 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 198992025600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359426995200).

198992025600 is an abundant number, since it is smaller than the sum of its proper divisors (519861964800).

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

198992025600 is a wasteful number, since it uses less digits than its factorization.

198992025600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 51.

The spelling of 198992025600 in words is "one hundred ninety-eight billion, nine hundred ninety-two million, twenty-five thousand, six hundred".