6624846660 has 96 divisors (see below), whose sum is σ = 19550361600. Its totient is φ = 1671546240.

The previous prime is 6624846649. The next prime is 6624846673. The reversal of 6624846660 is 666484266.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1035351 + ... + 1041729.

It is an arithmetic number, because the mean of its divisors is an integer number (203649600).

Almost surely, 2^6624846660 is an apocalyptic number.

6624846660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6624846660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9775180800).

6624846660 is an abundant number, since it is smaller than the sum of its proper divisors (12925514940).

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

6624846660 is a wasteful number, since it uses less digits than its factorization.

6624846660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7321 (or 7319 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The square root of 6624846660 is about 81393.1610149157. The cubic root of 6624846660 is about 1878.1283867130.

The spelling of 6624846660 in words is "six billion, six hundred twenty-four million, eight hundred forty-six thousand, six hundred sixty".