5566166506133 has 2 divisors, whose sum is σ = 5566166506134. Its totient is φ = 5566166506132.

The previous prime is 5566166506051. The next prime is 5566166506171. The reversal of 5566166506133 is 3316056616655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3651836916484 + 1914329589649 = 1910978^2 + 1383593^2 .

It is a cyclic number.

It is not a de Polignac number, because 5566166506133 - 2²⁴ = 5566149728917 is a prime.

It is a super-2 number, since 2×5566166506133² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5566166506193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2783083253066 + 2783083253067.

It is an arithmetic number, because the mean of its divisors is an integer number (2783083253067).

Almost surely, 2^{5566166506133} is an apocalyptic number.

It is an amenable number.

5566166506133 is a deficient number, since it is larger than the sum of its proper divisors (1).

5566166506133 is an equidigital number, since it uses as much as digits as its factorization.

5566166506133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748000, while the sum is 53.

The spelling of 5566166506133 in words is "five trillion, five hundred sixty-six billion, one hundred sixty-six million, five hundred six thousand, one hundred thirty-three".