11166556579 has 2 divisors, whose sum is σ = 11166556580. Its totient is φ = 11166556578.

The previous prime is 11166556571. The next prime is 11166556651. The reversal of 11166556579 is 97565566111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11166556579 - 2³ = 11166556571 is a prime.

It is not a weakly prime, because it can be changed into another prime (11166556571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5583278289 + 5583278290.

It is an arithmetic number, because the mean of its divisors is an integer number (5583278290).

Almost surely, 2^11166556579 is an apocalyptic number.

11166556579 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166556579 is an equidigital number, since it uses as much as digits as its factorization.

11166556579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1701000, while the sum is 52.

The spelling of 11166556579 in words is "eleven billion, one hundred sixty-six million, five hundred fifty-six thousand, five hundred seventy-nine".