20064220484 has 36 divisors (see below), whose sum is σ = 44108128512. Its totient is φ = 7817227440.

The previous prime is 20064220483. The next prime is 20064220537. The reversal of 20064220484 is 48402246002.

It is a self number, because there is not a number n which added to its sum of digits gives 20064220484.

It is not an unprimeable number, because it can be changed into a prime (20064220483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2957684 + ... + 2964459.

It is an arithmetic number, because the mean of its divisors is an integer number (1225225792).

Almost surely, 2^20064220484 is an apocalyptic number.

It is an amenable number.

20064220484 is an abundant number, since it is smaller than the sum of its proper divisors (24043908028).

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

20064220484 is a wasteful number, since it uses less digits than its factorization.

20064220484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922176 (or 5922163 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 20064220484 its reverse (48402246002), we get a palindrome (68466466486).

The spelling of 20064220484 in words is "twenty billion, sixty-four million, two hundred twenty thousand, four hundred eighty-four".