198481833169 has 9 divisors (see below), whose sum is σ = 202816098697. Its totient is φ = 194238321844.

The previous prime is 198481833163. The next prime is 198481833191. The reversal of 198481833169 is 961338184891.

The square root of 198481833169 is 445513.

It is a perfect power (a square), and thus also a powerful number.

198481833169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198481833169 - 2⁷ = 198481833041 is a prime.

It is a super-2 number, since 2×198481833169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198481833163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20934372 + ... + 20943850.

Almost surely, 2^198481833169 is an apocalyptic number.

198481833169 is the 445513-rd square number.

198481833169 is the 222757-th centered octagonal number.

It is an amenable number.

198481833169 is a deficient number, since it is larger than the sum of its proper divisors (4334265528).

198481833169 is an frugal number, since it uses more digits than its factorization.

198481833169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19052 (or 9526 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 61.

The spelling of 198481833169 in words is "one hundred ninety-eight billion, four hundred eighty-one million, eight hundred thirty-three thousand, one hundred sixty-nine".