6639482080 has 384 divisors, whose sum is σ = 20386308096. Its totient is φ = 1983744000.

The previous prime is 6639482051. The next prime is 6639482089. The reversal of 6639482080 is 802849366.

It is a happy number.

It is a super-2 number, since 2×6639482080² = 88165444581282252800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6639482080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6639482089) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43970005 + ... + 43970155.

It is an arithmetic number, because the mean of its divisors is an integer number (53089344).

Almost surely, 2^6639482080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6639482080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10193154048).

6639482080 is an abundant number, since it is smaller than the sum of its proper divisors (13746826016).

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

6639482080 is a wasteful number, since it uses less digits than its factorization.

6639482080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 6639482080 is about 81483.0171262699. The cubic root of 6639482080 is about 1879.5104051788.

The spelling of 6639482080 in words is "six billion, six hundred thirty-nine million, four hundred eighty-two thousand, eighty".