22066812655 has 8 divisors (see below), whose sum is σ = 26495087472. Its totient is φ = 17643508608.

The previous prime is 22066812653. The next prime is 22066812661. The reversal of 22066812655 is 55621866022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22066812655 - 2¹ = 22066812653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22066812653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232917 + ... + 1250686.

It is an arithmetic number, because the mean of its divisors is an integer number (3311885934).

Almost surely, 2^22066812655 is an apocalyptic number.

22066812655 is a deficient number, since it is larger than the sum of its proper divisors (4428274817).

22066812655 is a wasteful number, since it uses less digits than its factorization.

22066812655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485385.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 22066812655 in words is "twenty-two billion, sixty-six million, eight hundred twelve thousand, six hundred fifty-five".