22287165857436 has 12 divisors (see below), whose sum is σ = 52003387000712. Its totient is φ = 7429055285808.

The previous prime is 22287165857279. The next prime is 22287165857447. The reversal of 22287165857436 is 63475856178222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928631910715 + ... + 928631910738.

Almost surely, 2^{22287165857436} is an apocalyptic number.

It is an amenable number.

22287165857436 is an abundant number, since it is smaller than the sum of its proper divisors (29716221143276).

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

22287165857436 is a wasteful number, since it uses less digits than its factorization.

22287165857436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857263821460 (or 1857263821458 counting only the distinct ones).

The product of its digits is 270950400, while the sum is 66.

The spelling of 22287165857436 in words is "twenty-two trillion, two hundred eighty-seven billion, one hundred sixty-five million, eight hundred fifty-seven thousand, four hundred thirty-six".