5665565655511 has 8 divisors (see below), whose sum is σ = 5721619712000. Its totient is φ = 5609690400888.

The previous prime is 5665565655509. The next prime is 5665565655517. The reversal of 5665565655511 is 1155565655665.

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 5665565655511 - 2¹ = 5665565655509 is a prime.

It is a super-2 number, since 2×5665565655511² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665565655511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665565655517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44636781 + ... + 44763526.

It is an arithmetic number, because the mean of its divisors is an integer number (715202464000).

Almost surely, 2^{5665565655511} is an apocalyptic number.

5665565655511 is a deficient number, since it is larger than the sum of its proper divisors (56054056489).

5665565655511 is a wasteful number, since it uses less digits than its factorization.

5665565655511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89400933.

The product of its digits is 101250000, while the sum is 61.

The spelling of 5665565655511 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-five million, six hundred fifty-five thousand, five hundred eleven".