6625333220 has 144 divisors (see below), whose sum is σ = 15976987824. Its totient is φ = 2303769600.

The previous prime is 6625333219. The next prime is 6625333223. The reversal of 6625333220 is 223335266.

It can be written as a sum of positive squares in 8 ways, for example, as 1183910464 + 5441422756 = 34408^2 + 73766^2 .

It is not an unprimeable number, because it can be changed into a prime (6625333223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5461334 + ... + 5462546.

Almost surely, 2^6625333220 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 6625333220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7988493912).

6625333220 is an abundant number, since it is smaller than the sum of its proper divisors (9351654604).

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

6625333220 is a wasteful number, since it uses less digits than its factorization.

6625333220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 32.

The square root of 6625333220 is about 81396.1499089484. The cubic root of 6625333220 is about 1878.1743651245.

Adding to 6625333220 its reverse (223335266), we get a palindrome (6848668486).

The spelling of 6625333220 in words is "six billion, six hundred twenty-five million, three hundred thirty-three thousand, two hundred twenty".