112345566779 has 4 divisors (see below), whose sum is σ = 112359220776. Its totient is φ = 112331912784.

The previous prime is 112345566761. The next prime is 112345566797. The reversal of 112345566779 is 977665543211.

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

It is an interprime number because it is at equal distance from previous prime (112345566761) and next prime (112345566797).

It is a cyclic number.

It is not a de Polignac number, because 112345566779 - 2¹⁶ = 112345501243 is a prime.

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 (112345566079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6814649 + ... + 6831114.

It is an arithmetic number, because the mean of its divisors is an integer number (28089805194).

Almost surely, 2^112345566779 is an apocalyptic number.

112345566779 is a deficient number, since it is larger than the sum of its proper divisors (13653997).

112345566779 is an equidigital number, since it uses as much as digits as its factorization.

112345566779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13653996.

The product of its digits is 9525600, while the sum is 56.

The spelling of 112345566779 in words is "one hundred twelve billion, three hundred forty-five million, five hundred sixty-six thousand, seven hundred seventy-nine".