22028545360 has 20 divisors (see below), whose sum is σ = 51216368148. Its totient is φ = 8811418112.

The previous prime is 22028545303. The next prime is 22028545361. The reversal of 22028545360 is 6354582022.

It can be written as a sum of positive squares in 2 ways, for example, as 12193459776 + 9835085584 = 110424^2 + 99172^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22028545361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137678329 + ... + 137678488.

Almost surely, 2^22028545360 is an apocalyptic number.

22028545360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22028545360 is an abundant number, since it is smaller than the sum of its proper divisors (29187822788).

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

22028545360 is a wasteful number, since it uses less digits than its factorization.

22028545360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275356830 (or 275356824 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 22028545360 in words is "twenty-two billion, twenty-eight million, five hundred forty-five thousand, three hundred sixty".