22505244522432 has 56 divisors (see below), whose sum is σ = 68051572726656. Its totient is φ = 6430069863168.

The previous prime is 22505244522421. The next prime is 22505244522437. The reversal of 22505244522432 is 23422544250522.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22505244522437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8372485458 + ... + 8372488145.

Almost surely, 2^{22505244522432} is an apocalyptic number.

It is an amenable number.

22505244522432 is an abundant number, since it is smaller than the sum of its proper divisors (45546328204224).

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

22505244522432 is a wasteful number, since it uses less digits than its factorization.

22505244522432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16744973625 (or 16744973615 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 42.

Adding to 22505244522432 its reverse (23422544250522), we get a palindrome (45927788772954).

The spelling of 22505244522432 in words is "twenty-two trillion, five hundred five billion, two hundred forty-four million, five hundred twenty-two thousand, four hundred thirty-two".