5565659905 has 8 divisors (see below), whose sum is σ = 7192545192. Its totient is φ = 4110025728.

The previous prime is 5565659861. The next prime is 5565659933. The reversal of 5565659905 is 5099565655.

5565659905 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 87291649 + 5478368256 = 9343^2 + 74016^2 .

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 5565659905 - 2¹¹ = 5565657857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42812704 + ... + 42812833.

It is an arithmetic number, because the mean of its divisors is an integer number (899068149).

Almost surely, 2^5565659905 is an apocalyptic number.

It is an amenable number.

5565659905 is a deficient number, since it is larger than the sum of its proper divisors (1626885287).

5565659905 is a wasteful number, since it uses less digits than its factorization.

5565659905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85625555.

The product of its (nonzero) digits is 9112500, while the sum is 55.

The square root of 5565659905 is about 74603.3504944651. The cubic root of 5565659905 is about 1772.1707123425.

The spelling of 5565659905 in words is "five billion, five hundred sixty-five million, six hundred fifty-nine thousand, nine hundred five".