6643283104 has 24 divisors (see below), whose sum is σ = 13432451508. Its totient is φ = 3231866880.

The previous prime is 6643283081. The next prime is 6643283149. The reversal of 6643283104 is 4013823466.

It can be written as a sum of positive squares in 2 ways, for example, as 6635731600 + 7551504 = 81460^2 + 2748^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2804257 + ... + 2806624.

Almost surely, 2^6643283104 is an apocalyptic number.

It is an amenable number.

6643283104 is an abundant number, since it is smaller than the sum of its proper divisors (6789168404).

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

6643283104 is a wasteful number, since it uses less digits than its factorization.

6643283104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610928 (or 5610920 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 6643283104 is about 81506.3378149209. The cubic root of 6643283104 is about 1879.8690024915.

The spelling of 6643283104 in words is "six billion, six hundred forty-three million, two hundred eighty-three thousand, one hundred four".