22395871648 has 96 divisors (see below), whose sum is σ = 45527605200. Its totient is φ = 10840227840.

The previous prime is 22395871637. The next prime is 22395871649. The reversal of 22395871648 is 84617859322.

It can be written as a sum of positive squares in 8 ways, for example, as 16793049744 + 5602821904 = 129588^2 + 74852^2 .

Its product of digits (5806080) is a multiple of the sum of its prime factors (810).

It is not an unprimeable number, because it can be changed into a prime (22395871649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64171378 + ... + 64171726.

Almost surely, 2^22395871648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22395871648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22763802600).

22395871648 is an abundant number, since it is smaller than the sum of its proper divisors (23131733552).

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

22395871648 is a wasteful number, since it uses less digits than its factorization.

22395871648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 802 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 22395871648 in words is "twenty-two billion, three hundred ninety-five million, eight hundred seventy-one thousand, six hundred forty-eight".