22471384856 has 16 divisors (see below), whose sum is σ = 44612308440. Its totient is φ = 10574769280.

The previous prime is 22471384853. The next prime is 22471384861. The reversal of 22471384856 is 65848317422.

It is a super-2 number, since 2×22471384856² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22471384853) 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, 82615250 + ... + 82615521.

Almost surely, 2^22471384856 is an apocalyptic number.

It is an amenable number.

22471384856 is a deficient number, since it is larger than the sum of its proper divisors (22140923584).

22471384856 is a wasteful number, since it uses less digits than its factorization.

22471384856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165230794 (or 165230790 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 50.

The spelling of 22471384856 in words is "twenty-two billion, four hundred seventy-one million, three hundred eighty-four thousand, eight hundred fifty-six".