6628670464 has 132 divisors (see below), whose sum is σ = 15167762344. Its totient is φ = 2877751296.

The previous prime is 6628670443. The next prime is 6628670507. The reversal of 6628670464 is 4640768266.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3846307 + ... + 3848029.

Almost surely, 2^6628670464 is an apocalyptic number.

6628670464 is a gapful number since it is divisible by the number (64) 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 6628670464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7583881172).

6628670464 is an abundant number, since it is smaller than the sum of its proper divisors (8539091880).

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

6628670464 is a wasteful number, since it uses less digits than its factorization.

6628670464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 49.

The square root of 6628670464 is about 81416.6473394723. The cubic root of 6628670464 is about 1878.4896636819.

The spelling of 6628670464 in words is "six billion, six hundred twenty-eight million, six hundred seventy thousand, four hundred sixty-four".