22020444464 has 10 divisors (see below), whose sum is σ = 42664611180. Its totient is φ = 11010222224.

The previous prime is 22020444461. The next prime is 22020444487. The reversal of 22020444464 is 46444402022.

It is a self number, because there is not a number n which added to its sum of digits gives 22020444464.

It is not an unprimeable number, because it can be changed into a prime (22020444461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688138874 + ... + 688138905.

It is an arithmetic number, because the mean of its divisors is an integer number (4266461118).

Almost surely, 2^22020444464 is an apocalyptic number.

It is an amenable number.

22020444464 is a deficient number, since it is larger than the sum of its proper divisors (20644166716).

22020444464 is a wasteful number, since it uses less digits than its factorization.

22020444464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376277787 (or 1376277781 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 22020444464 its reverse (46444402022), we get a palindrome (68464846486).

The spelling of 22020444464 in words is "twenty-two billion, twenty million, four hundred forty-four thousand, four hundred sixty-four".