198177187168 has 48 divisors (see below), whose sum is σ = 414762571440. Its totient is φ = 92943936000.

The previous prime is 198177187163. The next prime is 198177187213. The reversal of 198177187168 is 861781771891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198177187163) 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 7 ways as a sum of consecutive naturals, for example, 1552203 + ... + 1675018.

It is an arithmetic number, because the mean of its divisors is an integer number (8640886905).

Almost surely, 2^198177187168 is an apocalyptic number.

It is an amenable number.

198177187168 is an abundant number, since it is smaller than the sum of its proper divisors (216585384272).

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

198177187168 is a wasteful number, since it uses less digits than its factorization.

198177187168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227351 (or 3227343 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 64.

The spelling of 198177187168 in words is "one hundred ninety-eight billion, one hundred seventy-seven million, one hundred eighty-seven thousand, one hundred sixty-eight".