1116716779 has 4 divisors (see below), whose sum is σ = 1116837040. Its totient is φ = 1116596520.

The previous prime is 1116716771. The next prime is 1116716801. The reversal of 1116716779 is 9776176111.

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 1116716779 - 2³ = 1116716771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1116716771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44919 + ... + 65200.

It is an arithmetic number, because the mean of its divisors is an integer number (279209260).

Almost surely, 2^1116716779 is an apocalyptic number.

1116716779 is a deficient number, since it is larger than the sum of its proper divisors (120261).

1116716779 is a wasteful number, since it uses less digits than its factorization.

1116716779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120260.

The product of its digits is 111132, while the sum is 46.

The square root of 1116716779 is about 33417.3125639989. The cubic root of 1116716779 is about 1037.4830589773.

The spelling of 1116716779 in words is "one billion, one hundred sixteen million, seven hundred sixteen thousand, seven hundred seventy-nine".