198908118118 has 16 divisors (see below), whose sum is σ = 315643680000. Its totient is φ = 93746165832.

The previous prime is 198908118077. The next prime is 198908118139. The reversal of 198908118118 is 811811809891.

198908118118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 13144258 + ... + 13159381.

It is an arithmetic number, because the mean of its divisors is an integer number (19727730000).

Almost surely, 2^198908118118 is an apocalyptic number.

198908118118 is a deficient number, since it is larger than the sum of its proper divisors (116735561882).

198908118118 is a wasteful number, since it uses less digits than its factorization.

198908118118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26303859.

The product of its (nonzero) digits is 331776, while the sum is 55.

The spelling of 198908118118 in words is "one hundred ninety-eight billion, nine hundred eight million, one hundred eighteen thousand, one hundred eighteen".