198830420220 has 48 divisors (see below), whose sum is σ = 561108860928. Its totient is φ = 52603951680.

The previous prime is 198830420209. The next prime is 198830420237. The reversal of 198830420220 is 22024038891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13038996 + ... + 13054235.

It is an arithmetic number, because the mean of its divisors is an integer number (11689767936).

Almost surely, 2^198830420220 is an apocalyptic number.

198830420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198830420220 is an abundant number, since it is smaller than the sum of its proper divisors (362278440708).

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

198830420220 is a wasteful number, since it uses less digits than its factorization.

198830420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26093370 (or 26093368 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 198830420220 in words is "one hundred ninety-eight billion, eight hundred thirty million, four hundred twenty thousand, two hundred twenty".