22387995648 has 220 divisors, whose sum is σ = 69019468672. Its totient is φ = 7221104640.

The previous prime is 22387995647. The next prime is 22387995661. The reversal of 22387995648 is 84659978322.

It is a super-3 number, since 3×22387995648³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22387995647) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2566911 + ... + 2575617.

Almost surely, 2^22387995648 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 22387995648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34509734336).

22387995648 is an abundant number, since it is smaller than the sum of its proper divisors (46631473024).

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

22387995648 is an equidigital number, since it uses as much as digits as its factorization.

22387995648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770 (or 8743 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 22387995648 in words is "twenty-two billion, three hundred eighty-seven million, nine hundred ninety-five thousand, six hundred forty-eight".