11065442666 has 8 divisors (see below), whose sum is σ = 17046763140. Its totient is φ = 5383188288.

The previous prime is 11065442659. The next prime is 11065442671. The reversal of 11065442666 is 66624456011.

It can be written as a sum of positive squares in 2 ways, for example, as 7408217041 + 3657225625 = 86071^2 + 60475^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74766431 + ... + 74766578.

Almost surely, 2^11065442666 is an apocalyptic number.

11065442666 is a deficient number, since it is larger than the sum of its proper divisors (5981320474).

11065442666 is a wasteful number, since it uses less digits than its factorization.

11065442666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149533048.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 11065442666 its reverse (66624456011), we get a palindrome (77689898677).

The spelling of 11065442666 in words is "eleven billion, sixty-five million, four hundred forty-two thousand, six hundred sixty-six".