22145323532 has 24 divisors (see below), whose sum is σ = 39667955712. Its totient is φ = 10811782800.

The previous prime is 22145323511. The next prime is 22145323549. The reversal of 22145323532 is 23532354122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585557 + ... + 622227.

It is an arithmetic number, because the mean of its divisors is an integer number (1652831488).

Almost surely, 2^22145323532 is an apocalyptic number.

It is an amenable number.

22145323532 is a deficient number, since it is larger than the sum of its proper divisors (17522632180).

22145323532 is a wasteful number, since it uses less digits than its factorization.

22145323532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40229 (or 40227 counting only the distinct ones).

The product of its digits is 43200, while the sum is 32.

Adding to 22145323532 its reverse (23532354122), we get a palindrome (45677677654).

The spelling of 22145323532 in words is "twenty-two billion, one hundred forty-five million, three hundred twenty-three thousand, five hundred thirty-two".