22020262764 has 12 divisors (see below), whose sum is σ = 51380613144. Its totient is φ = 7340087584.

The previous prime is 22020262751. The next prime is 22020262883. The reversal of 22020262764 is 46726202022.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 917510937 + ... + 917510960.

It is an arithmetic number, because the mean of its divisors is an integer number (4281717762).

Almost surely, 2^22020262764 is an apocalyptic number.

It is an amenable number.

22020262764 is an abundant number, since it is smaller than the sum of its proper divisors (29360350380).

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

22020262764 is a wasteful number, since it uses less digits than its factorization.

22020262764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835021904 (or 1835021902 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

Adding to 22020262764 its reverse (46726202022), we get a palindrome (68746464786).

The spelling of 22020262764 in words is "twenty-two billion, twenty million, two hundred sixty-two thousand, seven hundred sixty-four".