20540104584 has 64 divisors (see below), whose sum is σ = 54203904000. Its totient is φ = 6468229440.

The previous prime is 20540104583. The next prime is 20540104619. The reversal of 20540104584 is 48540104502.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20540104583) 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, 100969 + ... + 226439.

It is an arithmetic number, because the mean of its divisors is an integer number (846936000).

Almost surely, 2^20540104584 is an apocalyptic number.

20540104584 is a gapful number since it is divisible by the number (24) 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 20540104584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27101952000).

20540104584 is an abundant number, since it is smaller than the sum of its proper divisors (33663799416).

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

20540104584 is a wasteful number, since it uses less digits than its factorization.

20540104584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125858 (or 125854 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The spelling of 20540104584 in words is "twenty billion, five hundred forty million, one hundred four thousand, five hundred eighty-four".