20535584592 has 80 divisors (see below), whose sum is σ = 55389133440. Its totient is φ = 6543753216.

The previous prime is 20535584561. The next prime is 20535584609. The reversal of 20535584592 is 29548553502.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2346048 + ... + 2354784.

It is an arithmetic number, because the mean of its divisors is an integer number (692364168).

Almost surely, 2^20535584592 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 20535584592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27694566720).

20535584592 is an abundant number, since it is smaller than the sum of its proper divisors (34853548848).

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

20535584592 is a wasteful number, since it uses less digits than its factorization.

20535584592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10900 (or 10894 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 20535584592 in words is "twenty billion, five hundred thirty-five million, five hundred eighty-four thousand, five hundred ninety-two".