5665161556569 has 16 divisors (see below), whose sum is σ = 7660343940480. Its totient is φ = 3723382427520.

The previous prime is 5665161556553. The next prime is 5665161556603. The reversal of 5665161556569 is 9656551615665.

5665161556569 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5665161556569 - 2⁴ = 5665161556553 is a prime.

It is a super-2 number, since 2×5665161556569² (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 (5665161556169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3364309 + ... + 4759085.

It is an arithmetic number, because the mean of its divisors is an integer number (478771496280).

Almost surely, 2^{5665161556569} is an apocalyptic number.

It is an amenable number.

5665161556569 is a deficient number, since it is larger than the sum of its proper divisors (1995182383911).

5665161556569 is a wasteful number, since it uses less digits than its factorization.

5665161556569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413920.

The product of its digits is 218700000, while the sum is 66.

The spelling of 5665161556569 in words is "five trillion, six hundred sixty-five billion, one hundred sixty-one million, five hundred fifty-six thousand, five hundred sixty-nine".