22054443651 has 12 divisors (see below), whose sum is σ = 31860291112. Its totient is φ = 14701175136.

The previous prime is 22054443647. The next prime is 22054443659. The reversal of 22054443651 is 15634445022.

22054443651 is a `hidden beast` number, since 2 + 20 + 544 + 43 + 6 + 51 = 666.

It is not a de Polignac number, because 22054443651 - 2² = 22054443647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22054443659) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 68506 + ... + 220911.

Almost surely, 2^22054443651 is an apocalyptic number.

22054443651 is a deficient number, since it is larger than the sum of its proper divisors (9805847461).

22054443651 is a wasteful number, since it uses less digits than its factorization.

22054443651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297890 (or 297887 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 22054443651 its reverse (15634445022), we get a palindrome (37688888673).

The spelling of 22054443651 in words is "twenty-two billion, fifty-four million, four hundred forty-three thousand, six hundred fifty-one".