11065666556665 has 8 divisors (see below), whose sum is σ = 15175771277760. Its totient is φ = 7587885638832.

The previous prime is 11065666556617. The next prime is 11065666556671. The reversal of 11065666556665 is 56665566656011.

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

It is a cyclic number.

It is not a de Polignac number, because 11065666556665 - 2³⁵ = 11031306818297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11065666556597 and 11065666556606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158080950775 + ... + 158080950844.

It is an arithmetic number, because the mean of its divisors is an integer number (1896971409720).

Almost surely, 2^{11065666556665} is an apocalyptic number.

It is an amenable number.

11065666556665 is a deficient number, since it is larger than the sum of its proper divisors (4110104721095).

11065666556665 is an equidigital number, since it uses as much as digits as its factorization.

11065666556665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316161901631.

The product of its (nonzero) digits is 174960000, while the sum is 64.

The spelling of 11065666556665 in words is "eleven trillion, sixty-five billion, six hundred sixty-six million, five hundred fifty-six thousand, six hundred sixty-five".