6605471138 has 16 divisors (see below), whose sum is σ = 11478785280. Its totient is φ = 2792136096.

The previous prime is 6605471137. The next prime is 6605471141. The reversal of 6605471138 is 8311745066.

It is a junction number, because it is equal to n+sod(n) for n = 6605471095 and 6605471104.

It is not an unprimeable number, because it can be changed into a prime (6605471137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3230618 + ... + 3232661.

It is an arithmetic number, because the mean of its divisors is an integer number (717424080).

Almost surely, 2^6605471138 is an apocalyptic number.

6605471138 is a deficient number, since it is larger than the sum of its proper divisors (4873314142).

6605471138 is a wasteful number, since it uses less digits than its factorization.

6605471138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6463361.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 6605471138 is about 81274.0495976422. The cubic root of 6605471138 is about 1876.2956272279.

The spelling of 6605471138 in words is "six billion, six hundred five million, four hundred seventy-one thousand, one hundred thirty-eight".