111959011698 has 16 divisors (see below), whose sum is σ = 223941061920. Its totient is φ = 37315830816.

The previous prime is 111959011679. The next prime is 111959011711. The reversal of 111959011698 is 896110959111.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111959011698.

It is an unprimeable number.

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, 896440 + ... + 1013667.

It is an arithmetic number, because the mean of its divisors is an integer number (13996316370).

Almost surely, 2^111959011698 is an apocalyptic number.

111959011698 is an abundant number, since it is smaller than the sum of its proper divisors (111982050222).

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

111959011698 is a wasteful number, since it uses less digits than its factorization.

111959011698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919881.

The product of its (nonzero) digits is 174960, while the sum is 51.

The spelling of 111959011698 in words is "one hundred eleven billion, nine hundred fifty-nine million, eleven thousand, six hundred ninety-eight".