198266328930 has 64 divisors (see below), whose sum is σ = 491650790400. Its totient is φ = 51117384960.

The previous prime is 198266328889. The next prime is 198266328977. The reversal of 198266328930 is 39823662891.

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 31 ways as a sum of consecutive naturals, for example, 894456 + ... + 1093884.

It is an arithmetic number, because the mean of its divisors is an integer number (7682043600).

Almost surely, 2^198266328930 is an apocalyptic number.

198266328930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 198266328930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245825395200).

198266328930 is an abundant number, since it is smaller than the sum of its proper divisors (293384461470).

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

198266328930 is a wasteful number, since it uses less digits than its factorization.

198266328930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200539.

The product of its (nonzero) digits is 6718464, while the sum is 57.

The spelling of 198266328930 in words is "one hundred ninety-eight billion, two hundred sixty-six million, three hundred twenty-eight thousand, nine hundred thirty".