11066051606861 has 2 divisors, whose sum is σ = 11066051606862. Its totient is φ = 11066051606860.

The previous prime is 11066051606851. The next prime is 11066051606891. The reversal of 11066051606861 is 16860615066011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10899572102500 + 166479504361 = 3301450^2 + 408019^2 .

It is a cyclic number.

It is not a de Polignac number, because 11066051606861 - 2¹⁰ = 11066051605837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11066051606851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5533025803430 + 5533025803431.

It is an arithmetic number, because the mean of its divisors is an integer number (5533025803431).

Almost surely, 2^{11066051606861} is an apocalyptic number.

It is an amenable number.

11066051606861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11066051606861 is an equidigital number, since it uses as much as digits as its factorization.

11066051606861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 11066051606861 in words is "eleven trillion, sixty-six billion, fifty-one million, six hundred six thousand, eight hundred sixty-one".