22505343453 has 16 divisors (see below), whose sum is σ = 33347872960. Its totient is φ = 15000581808.

The previous prime is 22505343431. The next prime is 22505343493. The reversal of 22505343453 is 35434350522.

22505343453 is a `hidden beast` number, since 22 + 50 + 534 + 3 + 4 + 53 = 666.

It is not a de Polignac number, because 22505343453 - 2¹⁰ = 22505342429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22505343493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60126 + ... + 220512.

It is an arithmetic number, because the mean of its divisors is an integer number (2084242060).

Almost surely, 2^22505343453 is an apocalyptic number.

It is an amenable number.

22505343453 is a deficient number, since it is larger than the sum of its proper divisors (10842529507).

22505343453 is a wasteful number, since it uses less digits than its factorization.

22505343453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165593 (or 165587 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

Adding to 22505343453 its reverse (35434350522), we get a palindrome (57939693975).

The spelling of 22505343453 in words is "twenty-two billion, five hundred five million, three hundred forty-three thousand, four hundred fifty-three".