6664755682 has 8 divisors (see below), whose sum is σ = 10766143836. Its totient is φ = 3076041072.

The previous prime is 6664755653. The next prime is 6664755683. The reversal of 6664755682 is 2865574666.

It can be written as a sum of positive squares in 2 ways, for example, as 5096674881 + 1568080801 = 71391^2 + 39599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6664755683) 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 3 ways as a sum of consecutive naturals, for example, 128168353 + ... + 128168404.

Almost surely, 2^6664755682 is an apocalyptic number.

6664755682 is a deficient number, since it is larger than the sum of its proper divisors (4101388154).

6664755682 is a wasteful number, since it uses less digits than its factorization.

6664755682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256336772.

The product of its digits is 14515200, while the sum is 55.

The square root of 6664755682 is about 81637.9549106909. The cubic root of 6664755682 is about 1881.8922100345.

The spelling of 6664755682 in words is "six billion, six hundred sixty-four million, seven hundred fifty-five thousand, six hundred eighty-two".