11166777779 has 2 divisors, whose sum is σ = 11166777780. Its totient is φ = 11166777778.

The previous prime is 11166777767. The next prime is 11166777829. The reversal of 11166777779 is 97777766111.

11166777779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11166777779 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (11166777749) 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 as a sum of consecutive naturals, namely, 5583388889 + 5583388890.

It is an arithmetic number, because the mean of its divisors is an integer number (5583388890).

Almost surely, 2^11166777779 is an apocalyptic number.

11166777779 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166777779 is an equidigital number, since it uses as much as digits as its factorization.

11166777779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5445468, while the sum is 59.

The spelling of 11166777779 in words is "eleven billion, one hundred sixty-six million, seven hundred seventy-seven thousand, seven hundred seventy-nine".