22243239648 has 216 divisors, whose sum is σ = 75573873648. Its totient is φ = 6078606336.

The previous prime is 22243239631. The next prime is 22243239703. The reversal of 22243239648 is 84693234222.

22243239648 is a `hidden beast` number, since 2 + 224 + 32 + 396 + 4 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1056036 + ... + 1076892.

Almost surely, 2^22243239648 is an apocalyptic number.

22243239648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22243239648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37786936824).

22243239648 is an abundant number, since it is smaller than the sum of its proper divisors (53330634000).

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

22243239648 is a wasteful number, since it uses less digits than its factorization.

22243239648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20926 (or 20892 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The spelling of 22243239648 in words is "twenty-two billion, two hundred forty-three million, two hundred thirty-nine thousand, six hundred forty-eight".