11065605517 has 2 divisors, whose sum is σ = 11065605518. Its totient is φ = 11065605516.

The previous prime is 11065605511. The next prime is 11065605557. The reversal of 11065605517 is 71550656011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6792891561 + 4272713956 = 82419^2 + 65366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11065605517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11065605511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5532802758 + 5532802759.

It is an arithmetic number, because the mean of its divisors is an integer number (5532802759).

Almost surely, 2^11065605517 is an apocalyptic number.

It is an amenable number.

11065605517 is a deficient number, since it is larger than the sum of its proper divisors (1).

11065605517 is an equidigital number, since it uses as much as digits as its factorization.

11065605517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 11065605517 in words is "eleven billion, sixty-five million, six hundred five thousand, five hundred seventeen".