198223627500 has 720 divisors, whose sum is σ = 695927232000. Its totient is φ = 47355840000.

The previous prime is 198223627499. The next prime is 198223627517. The reversal of 198223627500 is 5726322891.

198223627500 is a `hidden beast` number, since 1 + 9 + 82 + 2 + 3 + 62 + 7 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 239 ways as a sum of consecutive naturals, for example, 731452365 + ... + 731452635.

It is an arithmetic number, because the mean of its divisors is an integer number (966565600).

Almost surely, 2^198223627500 is an apocalyptic number.

198223627500 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 198223627500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347963616000).

198223627500 is an abundant number, since it is smaller than the sum of its proper divisors (497703604500).

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

198223627500 is a wasteful number, since it uses less digits than its factorization.

198223627500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 198223627500 in words is "one hundred ninety-eight billion, two hundred twenty-three million, six hundred twenty-seven thousand, five hundred".