5566655665 has 8 divisors (see below), whose sum is σ = 6717306240. Its totient is φ = 4428444912.

The previous prime is 5566655659. The next prime is 5566655669. The reversal of 5566655665 is 5665566655.

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 5566655665 - 2³ = 5566655657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5566655669) by changing a digit.

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, 3108969 + ... + 3110758.

It is an arithmetic number, because the mean of its divisors is an integer number (839663280).

Almost surely, 2^5566655665 is an apocalyptic number.

It is an amenable number.

5566655665 is a deficient number, since it is larger than the sum of its proper divisors (1150650575).

5566655665 is a wasteful number, since it uses less digits than its factorization.

5566655665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6219911.

The product of its digits is 24300000, while the sum is 55.

The square root of 5566655665 is about 74610.0238908955. The cubic root of 5566655665 is about 1772.2763932207.

It can be divided in two parts, 556665 and 5665, that added together give a triangular number (562330 = T₁₀₆₀).

The spelling of 5566655665 in words is "five billion, five hundred sixty-six million, six hundred fifty-five thousand, six hundred sixty-five".