20534193205184 has 224 divisors, whose sum is σ = 43947446572800. Its totient is φ = 9485291110400.

The previous prime is 20534193205153. The next prime is 20534193205189. The reversal of 20534193205184 is 48150239143502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20534193205189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8516876939 + ... + 8516879349.

Almost surely, 2^{20534193205184} 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 20534193205184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21973723286400).

20534193205184 is an abundant number, since it is smaller than the sum of its proper divisors (23413253367616).

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

20534193205184 is a wasteful number, since it uses less digits than its factorization.

20534193205184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187 (or 3177 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 20534193205184 in words is "twenty trillion, five hundred thirty-four billion, one hundred ninety-three million, two hundred five thousand, one hundred eighty-four".