11665486529 has 2 divisors, whose sum is σ = 11665486530. Its totient is φ = 11665486528.

The previous prime is 11665486499. The next prime is 11665486531. The reversal of 11665486529 is 92568456611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11071248400 + 594238129 = 105220^2 + 24377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11665486529 is a prime.

Together with 11665486531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11665486559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5832743264 + 5832743265.

It is an arithmetic number, because the mean of its divisors is an integer number (5832743265).

Almost surely, 2^11665486529 is an apocalyptic number.

It is an amenable number.

11665486529 is a deficient number, since it is larger than the sum of its proper divisors (1).

11665486529 is an equidigital number, since it uses as much as digits as its factorization.

11665486529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 53.

The spelling of 11665486529 in words is "eleven billion, six hundred sixty-five million, four hundred eighty-six thousand, five hundred twenty-nine".