11665205267 has 2 divisors, whose sum is σ = 11665205268. Its totient is φ = 11665205266.

The previous prime is 11665205261. The next prime is 11665205273. The reversal of 11665205267 is 76250256611.

11665205267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (11665205261) and next prime (11665205273).

It is a cyclic number.

It is not a de Polignac number, because 11665205267 - 2⁸ = 11665205011 is a prime.

It is not a weakly prime, because it can be changed into another prime (11665205261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5832602633 + 5832602634.

It is an arithmetic number, because the mean of its divisors is an integer number (5832602634).

Almost surely, 2^11665205267 is an apocalyptic number.

11665205267 is a deficient number, since it is larger than the sum of its proper divisors (1).

11665205267 is an equidigital number, since it uses as much as digits as its factorization.

11665205267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 11665205267 in words is "eleven billion, six hundred sixty-five million, two hundred five thousand, two hundred sixty-seven".