6689441585 has 16 divisors (see below), whose sum is σ = 8125816320. Its totient is φ = 5286019200.

The previous prime is 6689441531. The next prime is 6689441599. The reversal of 6689441585 is 5851449866.

It is not a de Polignac number, because 6689441585 - 2¹⁴ = 6689425201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6689441585.

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 15 ways as a sum of consecutive naturals, for example, 460544 + ... + 474846.

It is an arithmetic number, because the mean of its divisors is an integer number (507863520).

Almost surely, 2^6689441585 is an apocalyptic number.

It is an amenable number.

6689441585 is a deficient number, since it is larger than the sum of its proper divisors (1436374735).

6689441585 is a wasteful number, since it uses less digits than its factorization.

6689441585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15448.

The product of its digits is 8294400, while the sum is 56.

The square root of 6689441585 is about 81789.0065045419. The cubic root of 6689441585 is about 1884.2128236918.

The spelling of 6689441585 in words is "six billion, six hundred eighty-nine million, four hundred forty-one thousand, five hundred eighty-five".