5665561606513 has 8 divisors (see below), whose sum is σ = 5947445756160. Its totient is φ = 5389872713040.

The previous prime is 5665561606511. The next prime is 5665561606519. The reversal of 5665561606513 is 3156061655665.

It is a happy number.

5665561606513 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5665561606513 - 2¹ = 5665561606511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5665561606511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1548812170 + ... + 1548815827.

It is an arithmetic number, because the mean of its divisors is an integer number (743430719520).

Almost surely, 2^{5665561606513} is an apocalyptic number.

It is an amenable number.

5665561606513 is a deficient number, since it is larger than the sum of its proper divisors (281884149647).

5665561606513 is a wasteful number, since it uses less digits than its factorization.

5665561606513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097628087.

The product of its (nonzero) digits is 14580000, while the sum is 55.

The spelling of 5665561606513 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-one million, six hundred six thousand, five hundred thirteen".