5665566005009 has 16 divisors (see below), whose sum is σ = 5702418247680. Its totient is φ = 5628827253840.

The previous prime is 5665566004981. The next prime is 5665566005083. The reversal of 5665566005009 is 9005006655665.

It is a cyclic number.

It is not a de Polignac number, because 5665566005009 - 2⁸ = 5665566004753 is a prime.

It is a super-2 number, since 2×5665566005009² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5665566001009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243239654 + ... + 243262944.

It is an arithmetic number, because the mean of its divisors is an integer number (356401140480).

Almost surely, 2^{5665566005009} is an apocalyptic number.

It is an amenable number.

5665566005009 is a deficient number, since it is larger than the sum of its proper divisors (36852242671).

5665566005009 is a wasteful number, since it uses less digits than its factorization.

5665566005009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25660.

The product of its (nonzero) digits is 7290000, while the sum is 53.

The spelling of 5665566005009 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-six million, five thousand, nine".