22425553306566 has 24 divisors (see below), whose sum is σ = 48726343883880. Its totient is φ = 7454008273536.

The previous prime is 22425553306523. The next prime is 22425553306589. The reversal of 22425553306566 is 66560335552422.

22425553306566 is a `hidden beast` number, since 2 + 2 + 4 + 2 + 5 + 553 + 30 + 6 + 56 + 6 = 666.

It is a super-3 number, since 3×22425553306566³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1764673636 + ... + 1764686343.

It is an arithmetic number, because the mean of its divisors is an integer number (2030264328495).

Almost surely, 2^{22425553306566} is an apocalyptic number.

22425553306566 is an abundant number, since it is smaller than the sum of its proper divisors (26300790577314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22425553306566 is a wasteful number, since it uses less digits than its factorization.

22425553306566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529360340 (or 3529360337 counting only the distinct ones).

The product of its (nonzero) digits is 38880000, while the sum is 54.

Adding to 22425553306566 its reverse (66560335552422), we get a palindrome (88985888858988).

The spelling of 22425553306566 in words is "twenty-two trillion, four hundred twenty-five billion, five hundred fifty-three million, three hundred six thousand, five hundred sixty-six".