22566651543441 has 6 divisors (see below), whose sum is σ = 32596274451650. Its totient is φ = 15044434362288.

The previous prime is 22566651543433. The next prime is 22566651543451. The reversal of 22566651543441 is 14434515666522.

It can be written as a sum of positive squares in only one way, i.e., 13371783995025 + 9194867548416 = 3656745^2 + 3032304^2 .

It is not a de Polignac number, because 22566651543441 - 2³ = 22566651543433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22566651543451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1253702863516 + ... + 1253702863533.

Almost surely, 2^{22566651543441} is an apocalyptic number.

It is an amenable number.

22566651543441 is a deficient number, since it is larger than the sum of its proper divisors (10029622908209).

22566651543441 is a wasteful number, since it uses less digits than its factorization.

22566651543441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507405727055 (or 2507405727052 counting only the distinct ones).

The product of its digits is 20736000, while the sum is 54.

The spelling of 22566651543441 in words is "twenty-two trillion, five hundred sixty-six billion, six hundred fifty-one million, five hundred forty-three thousand, four hundred forty-one".