198845533860 has 96 divisors (see below), whose sum is σ = 575709990912. Its totient is φ = 51227276160.

The previous prime is 198845533813. The next prime is 198845533867. The reversal of 198845533860 is 68335548891.

It is a super-3 number, since 3×198845533860³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 198845533794 and 198845533803.

It is not an unprimeable number, because it can be changed into a prime (198845533867) by changing a digit.

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, 1000759 + ... + 1182881.

It is an arithmetic number, because the mean of its divisors is an integer number (5996979072).

Almost surely, 2^198845533860 is an apocalyptic number.

198845533860 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 198845533860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287854995456).

198845533860 is an abundant number, since it is smaller than the sum of its proper divisors (376864457052).

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

198845533860 is a wasteful number, since it uses less digits than its factorization.

198845533860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182753 (or 182751 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 198845533860 in words is "one hundred ninety-eight billion, eight hundred forty-five million, five hundred thirty-three thousand, eight hundred sixty".