22185454964 has 12 divisors (see below), whose sum is σ = 38994087300. Its totient is φ = 11044287168.

The previous prime is 22185454943. The next prime is 22185454969. The reversal of 22185454964 is 46945458122.

It can be written as a sum of positive squares in 2 ways, for example, as 15890619364 + 6294835600 = 126058^2 + 79340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22185454969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12109049 + ... + 12110880.

It is an arithmetic number, because the mean of its divisors is an integer number (3249507275).

Almost surely, 2^22185454964 is an apocalyptic number.

It is an amenable number.

22185454964 is a deficient number, since it is larger than the sum of its proper divisors (16808632336).

22185454964 is a wasteful number, since it uses less digits than its factorization.

22185454964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24220162 (or 24220160 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 50.

The spelling of 22185454964 in words is "twenty-two billion, one hundred eighty-five million, four hundred fifty-four thousand, nine hundred sixty-four".