20584476752 has 80 divisors (see below), whose sum is σ = 46196126592. Its totient is φ = 8702968320.

The previous prime is 20584476751. The next prime is 20584476893. The reversal of 20584476752 is 25767448502.

It is a self number, because there is not a number n which added to its sum of digits gives 20584476752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20584476751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9267002 + ... + 9269222.

Almost surely, 2^20584476752 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 20584476752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23098063296).

20584476752 is an abundant number, since it is smaller than the sum of its proper divisors (25611649840).

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

20584476752 is a wasteful number, since it uses less digits than its factorization.

20584476752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3316 (or 3310 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 50.

The spelling of 20584476752 in words is "twenty billion, five hundred eighty-four million, four hundred seventy-six thousand, seven hundred fifty-two".