1066944817 has 2 divisors, whose sum is σ = 1066944818. Its totient is φ = 1066944816.

The previous prime is 1066944811. The next prime is 1066944841. The reversal of 1066944817 is 7184496601.

1066944817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066936896 + 7921 = 32664^2 + 89^2 .

It is an emirp because it is prime and its reverse (7184496601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066944817 is a prime.

It is a super-2 number, since 2×1066944817² = 2276742485046326978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066944811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533472408 + 533472409.

It is an arithmetic number, because the mean of its divisors is an integer number (533472409).

Almost surely, 2^1066944817 is an apocalyptic number.

It is an amenable number.

1066944817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066944817 is an equidigital number, since it uses as much as digits as its factorization.

1066944817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 1066944817 is about 32664.1212494688. The cubic root of 1066944817 is about 1021.8347143161.

The spelling of 1066944817 in words is "one billion, sixty-six million, nine hundred forty-four thousand, eight hundred seventeen".