20544872760 has 192 divisors, whose sum is σ = 67721472000. Its totient is φ = 5401209600.

The previous prime is 20544872731. The next prime is 20544872771. The reversal of 20544872760 is 6727844502.

It is a happy number.

20544872760 is a `hidden beast` number, since 2 + 0 + 544 + 87 + 27 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7554681 + ... + 7557399.

It is an arithmetic number, because the mean of its divisors is an integer number (352716000).

Almost surely, 2^20544872760 is an apocalyptic number.

20544872760 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 20544872760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33860736000).

20544872760 is an abundant number, since it is smaller than the sum of its proper divisors (47176599240).

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

20544872760 is a wasteful number, since it uses less digits than its factorization.

20544872760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026 (or 3019 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 20544872760 in words is "twenty billion, five hundred forty-four million, eight hundred seventy-two thousand, seven hundred sixty".