20386885908480 has 768 divisors, whose sum is σ = 80334795340800. Its totient is φ = 4298118266880.

The previous prime is 20386885908413. The next prime is 20386885908503. The reversal of 20386885908480 is 8480958868302.

It is a tau number, because it is divible by the number of its divisors (768).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 5839839535 + ... + 5839843025.

It is an arithmetic number, because the mean of its divisors is an integer number (104602598100).

Almost surely, 2^{20386885908480} is an apocalyptic number.

20386885908480 is a gapful number since it is divisible by the number (20) 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 20386885908480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40167397670400).

20386885908480 is an abundant number, since it is smaller than the sum of its proper divisors (59947909432320).

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

20386885908480 is a wasteful number, since it uses less digits than its factorization.

20386885908480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630 (or 5610 counting only the distinct ones).

The product of its (nonzero) digits is 212336640, while the sum is 69.

The spelling of 20386885908480 in words is "twenty trillion, three hundred eighty-six billion, eight hundred eighty-five million, nine hundred eight thousand, four hundred eighty".