20504341500 has 96 divisors (see below), whose sum is σ = 59742446400. Its totient is φ = 5464729600.

The previous prime is 20504341499. The next prime is 20504341519. The reversal of 20504341500 is 514340502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4090996 + ... + 4096004.

It is an arithmetic number, because the mean of its divisors is an integer number (622317150).

Almost surely, 2^20504341500 is an apocalyptic number.

20504341500 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 20504341500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29871223200).

20504341500 is an abundant number, since it is smaller than the sum of its proper divisors (39238104900).

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

20504341500 is a wasteful number, since it uses less digits than its factorization.

20504341500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760 (or 7748 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 20504341500 in words is "twenty billion, five hundred four million, three hundred forty-one thousand, five hundred".