6644004130 has 16 divisors (see below), whose sum is σ = 12213659520. Its totient is φ = 2601056752.

The previous prime is 6644004109. The next prime is 6644004137. The reversal of 6644004130 is 314004466.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6644004137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7067620 + ... + 7068559.

It is an arithmetic number, because the mean of its divisors is an integer number (763353720).

Almost surely, 2^6644004130 is an apocalyptic number.

6644004130 is a deficient number, since it is larger than the sum of its proper divisors (5569655390).

6644004130 is a wasteful number, since it uses less digits than its factorization.

6644004130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14136233.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 6644004130 is about 81510.7608233416. The cubic root of 6644004130 is about 1879.9370103009.

Adding to 6644004130 its reverse (314004466), we get a palindrome (6958008596).

The spelling of 6644004130 in words is "six billion, six hundred forty-four million, four thousand, one hundred thirty".