22505566127 has 32 divisors (see below), whose sum is σ = 27066892608. Its totient is φ = 18478080000.

The previous prime is 22505566067. The next prime is 22505566129. The reversal of 22505566127 is 72166550522.

It is a cyclic number.

It is not a de Polignac number, because 22505566127 - 2²⁰ = 22504517551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22505566129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443627 + ... + 491747.

It is an arithmetic number, because the mean of its divisors is an integer number (845840394).

Almost surely, 2^22505566127 is an apocalyptic number.

22505566127 is a deficient number, since it is larger than the sum of its proper divisors (4561326481).

22505566127 is a wasteful number, since it uses less digits than its factorization.

22505566127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48251.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 22505566127 in words is "twenty-two billion, five hundred five million, five hundred sixty-six thousand, one hundred twenty-seven".