20544468080 has 160 divisors (see below), whose sum is σ = 49373089920. Its totient is φ = 7947878400.

The previous prime is 20544468071. The next prime is 20544468097. The reversal of 20544468080 is 8086444502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104286542 + ... + 104286738.

It is an arithmetic number, because the mean of its divisors is an integer number (308581812).

Almost surely, 2^20544468080 is an apocalyptic number.

20544468080 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 20544468080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24686544960).

20544468080 is an abundant number, since it is smaller than the sum of its proper divisors (28828621840).

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

20544468080 is a wasteful number, since it uses less digits than its factorization.

20544468080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 41.

The spelling of 20544468080 in words is "twenty billion, five hundred forty-four million, four hundred sixty-eight thousand, eighty".