22240244664 has 48 divisors (see below), whose sum is σ = 65709816120. Its totient is φ = 6739467840.

The previous prime is 22240244651. The next prime is 22240244707. The reversal of 22240244664 is 46644204222.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14039767 + ... + 14041350.

Almost surely, 2^22240244664 is an apocalyptic number.

22240244664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22240244664 is an abundant number, since it is smaller than the sum of its proper divisors (43469571456).

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

22240244664 is a wasteful number, since it uses less digits than its factorization.

22240244664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28081140 (or 28081133 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 22240244664 its reverse (46644204222), we get a palindrome (68884448886).

The spelling of 22240244664 in words is "twenty-two billion, two hundred forty million, two hundred forty-four thousand, six hundred sixty-four".