11660048809 has 2 divisors, whose sum is σ = 11660048810. Its totient is φ = 11660048808.

The previous prime is 11660048773. The next prime is 11660048831. The reversal of 11660048809 is 90884006611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11616528400 + 43520409 = 107780^2 + 6597^2 .

It is a cyclic number.

It is not a de Polignac number, because 11660048809 - 2⁷ = 11660048681 is a prime.

It is not a weakly prime, because it can be changed into another prime (11660048899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830024404 + 5830024405.

It is an arithmetic number, because the mean of its divisors is an integer number (5830024405).

Almost surely, 2^11660048809 is an apocalyptic number.

It is an amenable number.

11660048809 is a deficient number, since it is larger than the sum of its proper divisors (1).

11660048809 is an equidigital number, since it uses as much as digits as its factorization.

11660048809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 11660048809 in words is "eleven billion, six hundred sixty million, forty-eight thousand, eight hundred nine".