111916799 has 4 divisors (see below), whose sum is σ = 111990600. Its totient is φ = 111843000.

The previous prime is 111916793. The next prime is 111916801. The reversal of 111916799 is 997619111.

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

It is a cyclic number.

It is not a de Polignac number, because 111916799 - 2¹⁶ = 111851263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111916793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34577 + ... + 37674.

It is an arithmetic number, because the mean of its divisors is an integer number (27997650).

Almost surely, 2^111916799 is an apocalyptic number.

111916799 is a deficient number, since it is larger than the sum of its proper divisors (73801).

111916799 is an equidigital number, since it uses as much as digits as its factorization.

111916799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73800.

The product of its digits is 30618, while the sum is 44.

The square root of 111916799 is about 10579.0736361933. The cubic root of 111916799 is about 481.9090624054.

The spelling of 111916799 in words is "one hundred eleven million, nine hundred sixteen thousand, seven hundred ninety-nine".