6681100148 has 12 divisors (see below), whose sum is σ = 11759509860. Its totient is φ = 3321240192.

The previous prime is 6681100141. The next prime is 6681100157. The reversal of 6681100148 is 8410011866.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6226472464 + 454627684 = 78908^2 + 21322^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681100141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4826693 + ... + 4828076.

It is an arithmetic number, because the mean of its divisors is an integer number (979959155).

Almost surely, 2^6681100148 is an apocalyptic number.

It is an amenable number.

6681100148 is a deficient number, since it is larger than the sum of its proper divisors (5078409712).

6681100148 is a wasteful number, since it uses less digits than its factorization.

6681100148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9654946 (or 9654944 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 6681100148 is about 81737.9969659154. The cubic root of 6681100148 is about 1883.4293213266.

The spelling of 6681100148 in words is "six billion, six hundred eighty-one million, one hundred thousand, one hundred forty-eight".