6686306122 has 16 divisors (see below), whose sum is σ = 10127395080. Its totient is φ = 3310543872.

The previous prime is 6686306119. The next prime is 6686306141. The reversal of 6686306122 is 2216036866.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5434490961 + 1251815161 = 73719^2 + 35381^2 .

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 7 ways as a sum of consecutive naturals, for example, 409018 + ... + 425050.

Almost surely, 2^6686306122 is an apocalyptic number.

6686306122 is a deficient number, since it is larger than the sum of its proper divisors (3441088958).

6686306122 is a wasteful number, since it uses less digits than its factorization.

6686306122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18057.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 6686306122 is about 81769.8362600782. The cubic root of 6686306122 is about 1883.9183894055.

The spelling of 6686306122 in words is "six billion, six hundred eighty-six million, three hundred six thousand, one hundred twenty-two".