6604105720 has 32 divisors (see below), whose sum is σ = 14871597120. Its totient is φ = 2639445120.

The previous prime is 6604105661. The next prime is 6604105721. The reversal of 6604105720 is 275014066.

It is a happy number.

It is a super-2 number, since 2×6604105720² = 87228424721873436800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6604105721) 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 in 7 ways as a sum of consecutive naturals, for example, 19536 + ... + 116575.

It is an arithmetic number, because the mean of its divisors is an integer number (464737410).

Almost surely, 2^6604105720 is an apocalyptic number.

It is an amenable number.

6604105720 is an abundant number, since it is smaller than the sum of its proper divisors (8267491400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6604105720 is a wasteful number, since it uses less digits than its factorization.

6604105720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137335 (or 137331 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 6604105720 is about 81265.6490775777. The cubic root of 6604105720 is about 1876.1663351953.

Adding to 6604105720 its reverse (275014066), we get a palindrome (6879119786).

The spelling of 6604105720 in words is "six billion, six hundred four million, one hundred five thousand, seven hundred twenty".