6606330640 has 320 divisors, whose sum is σ = 19830730752. Its totient is φ = 1990656000.

The previous prime is 6606330629. The next prime is 6606330659. The reversal of 6606330640 is 460336066.

It is a junction number, because it is equal to n+sod(n) for n = 6606330596 and 6606330605.

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 63 ways as a sum of consecutive naturals, for example, 16474440 + ... + 16474840.

Almost surely, 2^6606330640 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 6606330640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9915365376).

6606330640 is an abundant number, since it is smaller than the sum of its proper divisors (13224400112).

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

6606330640 is a wasteful number, since it uses less digits than its factorization.

6606330640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 6606330640 is about 81279.3371035960. The cubic root of 6606330640 is about 1876.3770047138.

The spelling of 6606330640 in words is "six billion, six hundred six million, three hundred thirty thousand, six hundred forty".