5665656066565 has 16 divisors (see below), whose sum is σ = 7424450383680. Its totient is φ = 4116259621120.

The previous prime is 5665656066529. The next prime is 5665656066647. The reversal of 5665656066565 is 5656606565665.

5665656066565 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 5665656066565 - 2⁹ = 5665656066053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5665656066565.

It is a congruent number.

It is an unprimeable number.

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, 52664755 + ... + 52772224.

It is an arithmetic number, because the mean of its divisors is an integer number (464028148980).

Almost surely, 2^{5665656066565} is an apocalyptic number.

5665656066565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5665656066565 is a deficient number, since it is larger than the sum of its proper divisors (1758794317115).

5665656066565 is a wasteful number, since it uses less digits than its factorization.

5665656066565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105437972.

The product of its (nonzero) digits is 874800000, while the sum is 67.

The spelling of 5665656066565 in words is "five trillion, six hundred sixty-five billion, six hundred fifty-six million, sixty-six thousand, five hundred sixty-five".