198179190112 has 24 divisors (see below), whose sum is σ = 391839824376. Its totient is φ = 98664314112.

The previous prime is 198179190109. The next prime is 198179190113. The reversal of 198179190112 is 211091971891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198179190113) 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 3 ways as a sum of consecutive naturals, for example, 13282458 + ... + 13297369.

It is an arithmetic number, because the mean of its divisors is an integer number (16326659349).

Almost surely, 2^198179190112 is an apocalyptic number.

It is an amenable number.

198179190112 is a deficient number, since it is larger than the sum of its proper divisors (193660634264).

198179190112 is a wasteful number, since it uses less digits than its factorization.

198179190112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26580070 (or 26580062 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 49.

The spelling of 198179190112 in words is "one hundred ninety-eight billion, one hundred seventy-nine million, one hundred ninety thousand, one hundred twelve".