22153144534 has 16 divisors (see below), whose sum is σ = 33831622800. Its totient is φ = 10876366944.

The previous prime is 22153144523. The next prime is 22153144537. The reversal of 22153144534 is 43544135122.

It is a self number, because there is not a number n which added to its sum of digits gives 22153144534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22153144537) 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, 3549 + ... + 210520.

It is an arithmetic number, because the mean of its divisors is an integer number (2114476425).

Almost surely, 2^22153144534 is an apocalyptic number.

22153144534 is a deficient number, since it is larger than the sum of its proper divisors (11678478266).

22153144534 is a wasteful number, since it uses less digits than its factorization.

22153144534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215007.

The product of its digits is 57600, while the sum is 34.

Adding to 22153144534 its reverse (43544135122), we get a palindrome (65697279656).

The spelling of 22153144534 in words is "twenty-two billion, one hundred fifty-three million, one hundred forty-four thousand, five hundred thirty-four".