1066866908441 has 2 divisors, whose sum is σ = 1066866908442. Its totient is φ = 1066866908440.

The previous prime is 1066866908413. The next prime is 1066866908449. The reversal of 1066866908441 is 1448096686601.

1066866908441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 939389346841 + 127477561600 = 969221^2 + 357040^2 .

It is an emirp because it is prime and its reverse (1448096686601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1066866908441 - 2¹⁸ = 1066866646297 is a prime.

It is a super-2 number, since 2×1066866908441² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066866908449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533433454220 + 533433454221.

It is an arithmetic number, because the mean of its divisors is an integer number (533433454221).

Almost surely, 2^{1066866908441} is an apocalyptic number.

It is an amenable number.

1066866908441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066866908441 is an equidigital number, since it uses as much as digits as its factorization.

1066866908441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11943936, while the sum is 59.

The spelling of 1066866908441 in words is "one trillion, sixty-six billion, eight hundred sixty-six million, nine hundred eight thousand, four hundred forty-one".