111664983412798 has 4 divisors (see below), whose sum is σ = 167497475119200. Its totient is φ = 55832491706398.

The previous prime is 111664983412727. The next prime is 111664983412849. The reversal of 111664983412798 is 897214389466111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27916245853198 + ... + 27916245853201.

It is an arithmetic number, because the mean of its divisors is an integer number (41874368779800).

Almost surely, 2^{111664983412798} is an apocalyptic number.

111664983412798 is a deficient number, since it is larger than the sum of its proper divisors (55832491706402).

111664983412798 is an equidigital number, since it uses as much as digits as its factorization.

111664983412798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55832491706401.

The product of its digits is 125411328, while the sum is 70.

The spelling of 111664983412798 in words is "one hundred eleven trillion, six hundred sixty-four billion, nine hundred eighty-three million, four hundred twelve thousand, seven hundred ninety-eight".