6642443110 has 32 divisors (see below), whose sum is σ = 12168988992. Its totient is φ = 2609854080.

The previous prime is 6642443081. The next prime is 6642443113. The reversal of 6642443110 is 113442466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642443113) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 464487 + ... + 478573.

It is an arithmetic number, because the mean of its divisors is an integer number (380280906).

Almost surely, 2^6642443110 is an apocalyptic number.

6642443110 is a deficient number, since it is larger than the sum of its proper divisors (5526545882).

6642443110 is a wasteful number, since it uses less digits than its factorization.

6642443110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14928.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 6642443110 is about 81501.1847153156. The cubic root of 6642443110 is about 1879.7897673093.

Adding to 6642443110 its reverse (113442466), we get a palindrome (6755885576).

The spelling of 6642443110 in words is "six billion, six hundred forty-two million, four hundred forty-three thousand, one hundred ten".