65544445922 has 6 divisors (see below), whose sum is σ = 98317211979. Its totient is φ = 32772041930.

The previous prime is 65544445919. The next prime is 65544445933. The reversal of 65544445922 is 22954444556.

It can be written as a sum of positive squares in only one way, i.e., 32772222961 + 32772222961 = 181031^2 + 181031^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=181031.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 271547 + ... + 452577.

Almost surely, 2^65544445922 is an apocalyptic number.

65544445922 is a deficient number, since it is larger than the sum of its proper divisors (32772766057).

65544445922 is an frugal number, since it uses more digits than its factorization.

65544445922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362064 (or 181033 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 50.

Multiplying 65544445922 by its sum of digits (50), we get a square (3277222296100 = 1810310²).

The spelling of 65544445922 in words is "sixty-five billion, five hundred forty-four million, four hundred forty-five thousand, nine hundred twenty-two".