6662857009 has 8 divisors (see below), whose sum is σ = 6919568480. Its totient is φ = 6410771136.

The previous prime is 6662856983. The next prime is 6662857013. The reversal of 6662857009 is 9007582666.

It is a happy number.

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 6662857009 - 2³¹ = 4515373361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6662851009) 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, 1153464 + ... + 1159225.

It is an arithmetic number, because the mean of its divisors is an integer number (864946060).

Almost surely, 2^6662857009 is an apocalyptic number.

It is an amenable number.

6662857009 is a deficient number, since it is larger than the sum of its proper divisors (256711471).

6662857009 is a wasteful number, since it uses less digits than its factorization.

6662857009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312799.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 6662857009 is about 81626.3254655016. The cubic root of 6662857009 is about 1881.7134869396.

The spelling of 6662857009 in words is "six billion, six hundred sixty-two million, eight hundred fifty-seven thousand, nine".