22066744553 has 4 divisors (see below), whose sum is σ = 25219136640. Its totient is φ = 18914352468.

The previous prime is 22066744547. The next prime is 22066744577. The reversal of 22066744553 is 35544766022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35544766022 = 2 ⋅17772383011.

It is a cyclic number.

It is not a de Polignac number, because 22066744553 - 2²⁴ = 22049967337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22066741553) 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, 1576196033 + ... + 1576196046.

It is an arithmetic number, because the mean of its divisors is an integer number (6304784160).

Almost surely, 2^22066744553 is an apocalyptic number.

It is an amenable number.

22066744553 is a deficient number, since it is larger than the sum of its proper divisors (3152392087).

22066744553 is an equidigital number, since it uses as much as digits as its factorization.

22066744553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152392086.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 22066744553 in words is "twenty-two billion, sixty-six million, seven hundred forty-four thousand, five hundred fifty-three".