20224649896 has 64 divisors (see below), whose sum is σ = 44064881280. Its totient is φ = 8600340480.

The previous prime is 20224649881. The next prime is 20224649897. The reversal of 20224649896 is 69894642202.

It is not an unprimeable number, because it can be changed into a prime (20224649897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209356 + ... + 290308.

It is an arithmetic number, because the mean of its divisors is an integer number (688513770).

Almost surely, 2^20224649896 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 20224649896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22032440640).

20224649896 is an abundant number, since it is smaller than the sum of its proper divisors (23840231384).

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

20224649896 is a wasteful number, since it uses less digits than its factorization.

20224649896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81154 (or 81150 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 20224649896 in words is "twenty billion, two hundred twenty-four million, six hundred forty-nine thousand, eight hundred ninety-six".