198359081225 has 12 divisors (see below), whose sum is σ = 246470337984. Its totient is φ = 158361408720.

The previous prime is 198359081191. The next prime is 198359081231. The reversal of 198359081225 is 522180953891.

198359081225 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 198359081225 - 2¹⁰ = 198359080201 is a prime.

It is a super-2 number, since 2×198359081225² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8133989 + ... + 8158338.

It is an arithmetic number, because the mean of its divisors is an integer number (20539194832).

Almost surely, 2^198359081225 is an apocalyptic number.

It is an amenable number.

198359081225 is a deficient number, since it is larger than the sum of its proper divisors (48111256759).

198359081225 is a wasteful number, since it uses less digits than its factorization.

198359081225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16292824 (or 16292819 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 53.

The spelling of 198359081225 in words is "one hundred ninety-eight billion, three hundred fifty-nine million, eighty-one thousand, two hundred twenty-five".