32220441644 has 12 divisors (see below), whose sum is σ = 56556124968. Its totient is φ = 16061548800.

The previous prime is 32220441629. The next prime is 32220441647. The reversal of 32220441644 is 44614402223.

It is a self number, because there is not a number n which added to its sum of digits gives 32220441644.

It is not an unprimeable number, because it can be changed into a prime (32220441647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12166517 + ... + 12169164.

It is an arithmetic number, because the mean of its divisors is an integer number (4713010414).

Almost surely, 2^32220441644 is an apocalyptic number.

It is an amenable number.

32220441644 is a deficient number, since it is larger than the sum of its proper divisors (24335683324).

32220441644 is a wasteful number, since it uses less digits than its factorization.

32220441644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24336016 (or 24336014 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 32220441644 its reverse (44614402223), we get a palindrome (76834843867).

The spelling of 32220441644 in words is "thirty-two billion, two hundred twenty million, four hundred forty-one thousand, six hundred forty-four".