5665565550609 has 24 divisors (see below), whose sum is σ = 8606642583552. Its totient is φ = 3584376956160.

The previous prime is 5665565550527. The next prime is 5665565550629. The reversal of 5665565550609 is 9060555655665.

5665565550609 is a `hidden beast` number, since 5 + 6 + 6 + 5 + 565 + 5 + 5 + 0 + 60 + 9 = 666.

It is not a de Polignac number, because 5665565550609 - 2¹⁷ = 5665565419537 is a prime.

It is a super-2 number, since 2×5665565550609² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5665565550629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107729152 + ... + 107781729.

It is an arithmetic number, because the mean of its divisors is an integer number (358610107648).

Almost surely, 2^{5665565550609} is an apocalyptic number.

It is an amenable number.

5665565550609 is a deficient number, since it is larger than the sum of its proper divisors (2941077032943).

5665565550609 is a wasteful number, since it uses less digits than its factorization.

5665565550609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215511037 (or 215511034 counting only the distinct ones).

The product of its (nonzero) digits is 182250000, while the sum is 63.

The spelling of 5665565550609 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-five million, five hundred fifty thousand, six hundred nine".