6640841600 has 48 divisors (see below), whose sum is σ = 16404961920. Its totient is φ = 2656335360.

The previous prime is 6640841593. The next prime is 6640841663. The reversal of 6640841600 is 61480466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1034432 + ... + 1040831.

It is an arithmetic number, because the mean of its divisors is an integer number (341770040).

Almost surely, 2^6640841600 is an apocalyptic number.

It is an amenable number.

6640841600 is an abundant number, since it is smaller than the sum of its proper divisors (9764120320).

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

6640841600 is a wasteful number, since it uses less digits than its factorization.

6640841600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075287 (or 2075270 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 6640841600 is about 81491.3590511289. The cubic root of 6640841600 is about 1879.6386811281.

The spelling of 6640841600 in words is "six billion, six hundred forty million, eight hundred forty-one thousand, six hundred".