6644444466 has 16 divisors (see below), whose sum is σ = 14496969888. Its totient is φ = 2013468000.

The previous prime is 6644444437. The next prime is 6644444467.

6644444466 is nontrivially palindromic in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (6644444467) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 50336635 + ... + 50336766.

It is an arithmetic number, because the mean of its divisors is an integer number (906060618).

Almost surely, 2^6644444466 is an apocalyptic number.

6644444466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6644444466 is an abundant number, since it is smaller than the sum of its proper divisors (7852525422).

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

6644444466 is a wasteful number, since it uses less digits than its factorization.

6644444466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100673417.

The product of its digits is 5308416, while the sum is 48.

The square root of 6644444466 is about 81513.4618698041. The cubic root of 6644444466 is about 1879.9785407615.

The spelling of 6644444466 in words is "six billion, six hundred forty-four million, four hundred forty-four thousand, four hundred sixty-six".