11066136217 has 4 divisors (see below), whose sum is σ = 11164066740. Its totient is φ = 10968205696.

The previous prime is 11066136203. The next prime is 11066136223. The reversal of 11066136217 is 71263166011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71263166011 = 150607 ⋅473173.

It can be written as a sum of positive squares in 2 ways, for example, as 650709081 + 10415427136 = 25509^2 + 102056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11066136217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11066136287) 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, 48965092 + ... + 48965317.

It is an arithmetic number, because the mean of its divisors is an integer number (2791016685).

Almost surely, 2^11066136217 is an apocalyptic number.

It is an amenable number.

11066136217 is a deficient number, since it is larger than the sum of its proper divisors (97930523).

11066136217 is an equidigital number, since it uses as much as digits as its factorization.

11066136217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97930522.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 11066136217 in words is "eleven billion, sixty-six million, one hundred thirty-six thousand, two hundred seventeen".