4444666666 has 16 divisors (see below), whose sum is σ = 7283491488. Its totient is φ = 2017414000.

The previous prime is 4444666661. The next prime is 4444666691. The reversal of 4444666666 is 6666664444.

It is a happy number.

4444666666 is a modest number, since divided by 66666 gives 44446 as remainder.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (4444666661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128680 + ... + 159523.

It is an arithmetic number, because the mean of its divisors is an integer number (455218218).

It is a self-describing number.

Almost surely, 2^4444666666 is an apocalyptic number.

4444666666 is a deficient number, since it is larger than the sum of its proper divisors (2838824822).

4444666666 is a wasteful number, since it uses less digits than its factorization.

4444666666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288917.

The product of its digits is 11943936, while the sum is 52.

The square root of 4444666666 is about 66668.3333075006. Note that the first 4 decimals coincide. The cubic root of 4444666666 is about 1644.1687847045.

The spelling of 4444666666 in words is "four billion, four hundred forty-four million, six hundred sixty-six thousand, six hundred sixty-six".