111116779 has 8 divisors (see below), whose sum is σ = 113406480. Its totient is φ = 108834336.

The previous prime is 111116771. The next prime is 111116783. The reversal of 111116779 is 977611111.

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

It is a cyclic number.

It is not a de Polignac number, because 111116779 - 2³ = 111116771 is a prime.

It is a pancake number, because a pancake can be divided into 111116779 parts by 14907 straight cuts.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111116771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37749 + ... + 40585.

It is an arithmetic number, because the mean of its divisors is an integer number (14175810).

Almost surely, 2^111116779 is an apocalyptic number.

111116779 is a deficient number, since it is larger than the sum of its proper divisors (2289701).

111116779 is an equidigital number, since it uses as much as digits as its factorization.

111116779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629.

The product of its digits is 2646, while the sum is 34.

The square root of 111116779 is about 10541.1943820423. The cubic root of 111116779 is about 480.7580311405.

The spelling of 111116779 in words is "one hundred eleven million, one hundred sixteen thousand, seven hundred seventy-nine".