22153330453 has 24 divisors (see below), whose sum is σ = 23556716568. Its totient is φ = 20820096000.

The previous prime is 22153330439. The next prime is 22153330487. The reversal of 22153330453 is 35403335122.

It can be written as a sum of positive squares in 4 ways, for example, as 580183569 + 21573146884 = 24087^2 + 146878^2 .

It is not a de Polignac number, because 22153330453 - 2²¹ = 22151233301 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22153330153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9494475 + ... + 9496807.

It is an arithmetic number, because the mean of its divisors is an integer number (981529857).

Almost surely, 2^22153330453 is an apocalyptic number.

It is an amenable number.

22153330453 is a deficient number, since it is larger than the sum of its proper divisors (1403386115).

22153330453 is a wasteful number, since it uses less digits than its factorization.

22153330453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 22153330453 its reverse (35403335122), we get a palindrome (57556665575).

The spelling of 22153330453 in words is "twenty-two billion, one hundred fifty-three million, three hundred thirty thousand, four hundred fifty-three".