5566688905 has 4 divisors (see below), whose sum is σ = 6680026692. Its totient is φ = 4453351120.

The previous prime is 5566688893. The next prime is 5566688909. The reversal of 5566688905 is 5098866655.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2045571984 + 3521116921 = 45228^2 + 59339^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5566688905 is a prime.

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 5566688905.

It is not an unprimeable number, because it can be changed into a prime (5566688909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556668886 + ... + 556668895.

It is an arithmetic number, because the mean of its divisors is an integer number (1670006673).

Almost surely, 2^5566688905 is an apocalyptic number.

It is an amenable number.

5566688905 is a deficient number, since it is larger than the sum of its proper divisors (1113337787).

5566688905 is a wasteful number, since it uses less digits than its factorization.

5566688905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113337786.

The product of its (nonzero) digits is 15552000, while the sum is 58.

The square root of 5566688905 is about 74610.2466488350. The cubic root of 5566688905 is about 1772.2799207936.

The spelling of 5566688905 in words is "five billion, five hundred sixty-six million, six hundred eighty-eight thousand, nine hundred five".