11666606066117 has 2 divisors, whose sum is σ = 11666606066118. Its totient is φ = 11666606066116.

The previous prime is 11666606065981. The next prime is 11666606066191. The reversal of 11666606066117 is 71166060666611.

11666606066117 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., 7759840351201 + 3906765714916 = 2785649^2 + 1976554^2 .

It is a cyclic number.

It is not a de Polignac number, because 11666606066117 - 2¹⁴ = 11666606049733 is a prime.

It is a super-2 number, since 2×11666606066117² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11666606066417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833303033058 + 5833303033059.

It is an arithmetic number, because the mean of its divisors is an integer number (5833303033059).

Almost surely, 2^{11666606066117} is an apocalyptic number.

It is an amenable number.

11666606066117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666606066117 is an equidigital number, since it uses as much as digits as its factorization.

11666606066117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 11666606066117 in words is "eleven trillion, six hundred sixty-six billion, six hundred six million, sixty-six thousand, one hundred seventeen".