5808785666 has 16 divisors (see below), whose sum is σ = 9015435000. Its totient is φ = 2803680768.

The previous prime is 5808785663. The next prime is 5808785681. The reversal of 5808785666 is 6665878085.

It can be written as a sum of positive squares in 4 ways, for example, as 3256414225 + 2552371441 = 57065^2 + 50521^2 .

It is not an unprimeable number, because it can be changed into a prime (5808785663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560306 + ... + 570578.

Almost surely, 2^5808785666 is an apocalyptic number.

5808785666 is a deficient number, since it is larger than the sum of its proper divisors (3206649334).

5808785666 is a wasteful number, since it uses less digits than its factorization.

5808785666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20053.

The product of its (nonzero) digits is 19353600, while the sum is 59.

The square root of 5808785666 is about 76215.3899550478. The cubic root of 5808785666 is about 1797.6085181147.

The spelling of 5808785666 in words is "five billion, eight hundred eight million, seven hundred eighty-five thousand, six hundred sixty-six".