11164560779 has 4 divisors (see below), whose sum is σ = 11202665376. Its totient is φ = 11126456184.

The previous prime is 11164560769. The next prime is 11164560787. The reversal of 11164560779 is 97706546111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97706546111 = 102071 ⋅957241.

It is a cyclic number.

It is not a de Polignac number, because 11164560779 - 2⁴ = 11164560763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11164560769) 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, 19051859 + ... + 19052444.

It is an arithmetic number, because the mean of its divisors is an integer number (2800666344).

Almost surely, 2^11164560779 is an apocalyptic number.

11164560779 is a deficient number, since it is larger than the sum of its proper divisors (38104597).

11164560779 is an equidigital number, since it uses as much as digits as its factorization.

11164560779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38104596.

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 11164560779 in words is "eleven billion, one hundred sixty-four million, five hundred sixty thousand, seven hundred seventy-nine".