6681562208 has 48 divisors (see below), whose sum is σ = 13308081696. Its totient is φ = 3301862400.

The previous prime is 6681562201. The next prime is 6681562219. The reversal of 6681562208 is 8022651866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681562201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979210 + ... + 1982582.

It is an arithmetic number, because the mean of its divisors is an integer number (277251702).

Almost surely, 2^6681562208 is an apocalyptic number.

It is an amenable number.

6681562208 is a deficient number, since it is larger than the sum of its proper divisors (6626519488).

6681562208 is a wasteful number, since it uses less digits than its factorization.

6681562208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087 (or 4079 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 6681562208 is about 81740.8233870934. The cubic root of 6681562208 is about 1883.4727391905.

The spelling of 6681562208 in words is "six billion, six hundred eighty-one million, five hundred sixty-two thousand, two hundred eight".