11665327225809 has 16 divisors (see below), whose sum is σ = 15560631092160. Its totient is φ = 7773454768320.

The previous prime is 11665327225777. The next prime is 11665327225817. The reversal of 11665327225809 is 90852272356611.

It is not a de Polignac number, because 11665327225809 - 2⁵ = 11665327225777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11665327225829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73108087 + ... + 73267475.

It is an arithmetic number, because the mean of its divisors is an integer number (972539443260).

Almost surely, 2^{11665327225809} is an apocalyptic number.

It is an amenable number.

11665327225809 is a deficient number, since it is larger than the sum of its proper divisors (3895303866351).

11665327225809 is a wasteful number, since it uses less digits than its factorization.

11665327225809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170000.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 11665327225809 in words is "eleven trillion, six hundred sixty-five billion, three hundred twenty-seven million, two hundred twenty-five thousand, eight hundred nine".