6643565030 has 16 divisors (see below), whose sum is σ = 12027543984. Its totient is φ = 2642064480.

The previous prime is 6643564951. The next prime is 6643565041. The reversal of 6643565030 is 305653466.

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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918376 + ... + 1921835.

It is an arithmetic number, because the mean of its divisors is an integer number (751721499).

Almost surely, 2^6643565030 is an apocalyptic number.

6643565030 is a deficient number, since it is larger than the sum of its proper divisors (5383978954).

6643565030 is a wasteful number, since it uses less digits than its factorization.

6643565030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840391.

The product of its (nonzero) digits is 194400, while the sum is 38.

The square root of 6643565030 is about 81508.0672694427. The cubic root of 6643565030 is about 1879.8955945868.

The spelling of 6643565030 in words is "six billion, six hundred forty-three million, five hundred sixty-five thousand, thirty".