111385478998 has 8 divisors (see below), whose sum is σ = 167215961808. Its totient is φ = 55646825064.

The previous prime is 111385478969. The next prime is 111385479013. The reversal of 111385478998 is 899874583111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111385478998² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22954186 + ... + 22959037.

It is an arithmetic number, because the mean of its divisors is an integer number (20901995226).

Almost surely, 2^111385478998 is an apocalyptic number.

111385478998 is a deficient number, since it is larger than the sum of its proper divisors (55830482810).

111385478998 is a wasteful number, since it uses less digits than its factorization.

111385478998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45914438.

The product of its digits is 17418240, while the sum is 64.

The spelling of 111385478998 in words is "one hundred eleven billion, three hundred eighty-five million, four hundred seventy-eight thousand, nine hundred ninety-eight".