20489391336096 has 576 divisors, whose sum is σ = 65922789703680. Its totient is φ = 6004694384640.

The previous prime is 20489391336077. The next prime is 20489391336097. The reversal of 20489391336096 is 69063319398402.

20489391336096 is a `hidden beast` number, since 2 + 0 + 4 + 8 + 9 + 3 + 9 + 13 + 3 + 609 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (20489391336097) 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 95 ways as a sum of consecutive naturals, for example, 713181060 + ... + 713209788.

It is an arithmetic number, because the mean of its divisors is an integer number (114449287680).

Almost surely, 2^{20489391336096} 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 20489391336096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32961394851840).

20489391336096 is an abundant number, since it is smaller than the sum of its proper divisors (45433398367584).

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

20489391336096 is a wasteful number, since it uses less digits than its factorization.

20489391336096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28957 (or 28946 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 63.

The spelling of 20489391336096 in words is "twenty trillion, four hundred eighty-nine billion, three hundred ninety-one million, three hundred thirty-six thousand, ninety-six".