6644111673 has 16 divisors (see below), whose sum is σ = 9152278016. Its totient is φ = 4282917120.

The previous prime is 6644111629. The next prime is 6644111693. The reversal of 6644111673 is 3761114466.

It is not a de Polignac number, because 6644111673 - 2⁶ = 6644111609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6644111603) 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 15 ways as a sum of consecutive naturals, for example, 83361 + ... + 142257.

It is an arithmetic number, because the mean of its divisors is an integer number (572017376).

Almost surely, 2^6644111673 is an apocalyptic number.

It is an amenable number.

6644111673 is a deficient number, since it is larger than the sum of its proper divisors (2508166343).

6644111673 is a wasteful number, since it uses less digits than its factorization.

6644111673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60144.

The product of its digits is 72576, while the sum is 39.

The square root of 6644111673 is about 81511.4205065769. The cubic root of 6644111673 is about 1879.9471534300.

The spelling of 6644111673 in words is "six billion, six hundred forty-four million, one hundred eleven thousand, six hundred seventy-three".