11065567779 has 24 divisors (see below), whose sum is σ = 18342790752. Its totient is φ = 6296935680.

The previous prime is 11065567759. The next prime is 11065567783. The reversal of 11065567779 is 97776556011.

11065567779 is a `hidden beast` number, since 1 + 1 + 0 + 6 + 5 + 567 + 7 + 79 = 666.

It is not a de Polignac number, because 11065567779 - 2⁹ = 11065567267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11065567759) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349224 + ... + 379589.

It is an arithmetic number, because the mean of its divisors is an integer number (764282948).

Almost surely, 2^11065567779 is an apocalyptic number.

11065567779 is a deficient number, since it is larger than the sum of its proper divisors (7277222973).

11065567779 is a wasteful number, since it uses less digits than its factorization.

11065567779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729067 (or 729064 counting only the distinct ones).

The product of its (nonzero) digits is 2778300, while the sum is 54.

The spelling of 11065567779 in words is "eleven billion, sixty-five million, five hundred sixty-seven thousand, seven hundred seventy-nine".