22505163423 has 4 divisors (see below), whose sum is σ = 30006884568. Its totient is φ = 15003442280.

The previous prime is 22505163409. The next prime is 22505163427. The reversal of 22505163423 is 32436150522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22505163423 - 2⁴ = 22505163407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22505163427) 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, 3750860568 + ... + 3750860573.

It is an arithmetic number, because the mean of its divisors is an integer number (7501721142).

Almost surely, 2^22505163423 is an apocalyptic number.

22505163423 is a deficient number, since it is larger than the sum of its proper divisors (7501721145).

22505163423 is an equidigital number, since it uses as much as digits as its factorization.

22505163423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501721144.

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 22505163423 in words is "twenty-two billion, five hundred five million, one hundred sixty-three thousand, four hundred twenty-three".