6604440440620 has 48 divisors (see below), whose sum is σ = 15378208294176. Its totient is φ = 2362243968000.

The previous prime is 6604440440603. The next prime is 6604440440623. The reversal of 6604440440620 is 260440444066.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6604440440623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246053661 + ... + 246080500.

It is an arithmetic number, because the mean of its divisors is an integer number (320379339462).

Almost surely, 2^{6604440440620} is an apocalyptic number.

It is an amenable number.

6604440440620 is an abundant number, since it is smaller than the sum of its proper divisors (8773767853556).

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

6604440440620 is a wasteful number, since it uses less digits than its factorization.

6604440440620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492134242 (or 492134240 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

Adding to 6604440440620 its reverse (260440444066), we get a palindrome (6864880884686).

The spelling of 6604440440620 in words is "six trillion, six hundred four billion, four hundred forty million, four hundred forty thousand, six hundred twenty".