6671355844 has 6 divisors (see below), whose sum is σ = 11674872734. Its totient is φ = 3335677920.

The previous prime is 6671355841. The next prime is 6671355853. The reversal of 6671355844 is 4485531766.

It can be written as a sum of positive squares in only one way, i.e., 3565522944 + 3105832900 = 59712^2 + 55730^2 .

It is not an unprimeable number, because it can be changed into a prime (6671355841) by changing a digit.

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 as a sum of consecutive naturals, namely, 833919477 + ... + 833919484.

Almost surely, 2^6671355844 is an apocalyptic number.

It is an amenable number.

6671355844 is a deficient number, since it is larger than the sum of its proper divisors (5003516890).

6671355844 is a wasteful number, since it uses less digits than its factorization.

6671355844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667838965 (or 1667838963 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 49.

The square root of 6671355844 is about 81678.3682745928. The cubic root of 6671355844 is about 1882.5132228248.

The spelling of 6671355844 in words is "six billion, six hundred seventy-one million, three hundred fifty-five thousand, eight hundred forty-four".