22065036440440 has 64 divisors (see below), whose sum is σ = 56959438334400. Its totient is φ = 7535718924288.

The previous prime is 22065036440411. The next prime is 22065036440449. The reversal of 22065036440440 is 4404463056022.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 22065036440393 and 22065036440402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22065036440449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153242635 + ... + 153386554.

It is an arithmetic number, because the mean of its divisors is an integer number (889991223975).

Almost surely, 2^{22065036440440} is an apocalyptic number.

22065036440440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22065036440440 is an abundant number, since it is smaller than the sum of its proper divisors (34894401893960).

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

22065036440440 is a wasteful number, since it uses less digits than its factorization.

22065036440440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306629464 (or 306629460 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 40.

Adding to 22065036440440 its reverse (4404463056022), we get a palindrome (26469499496462).

The spelling of 22065036440440 in words is "twenty-two trillion, sixty-five billion, thirty-six million, four hundred forty thousand, four hundred forty".