5665566000109 has 2 divisors, whose sum is σ = 5665566000110. Its totient is φ = 5665566000108.

The previous prime is 5665566000071. The next prime is 5665566000113. The reversal of 5665566000109 is 9010006655665.

It is a happy number.

5665566000109 is digitally balanced in base 3, 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., 4032051952009 + 1633514048100 = 2007997^2 + 1278090^2 .

It is a cyclic number.

It is not a de Polignac number, because 5665566000109 - 2¹⁷ = 5665565869037 is a prime.

It is a super-3 number, since 3×5665566000109³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5665566000209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832783000054 + 2832783000055.

It is an arithmetic number, because the mean of its divisors is an integer number (2832783000055).

Almost surely, 2^{5665566000109} is an apocalyptic number.

It is an amenable number.

5665566000109 is a deficient number, since it is larger than the sum of its proper divisors (1).

5665566000109 is an equidigital number, since it uses as much as digits as its factorization.

5665566000109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458000, while the sum is 49.

The spelling of 5665566000109 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-six million, one hundred nine", and thus it is an aban number.