205000453240520 has 128 divisors (see below), whose sum is σ = 532312294579200. Its totient is φ = 69597363545856.

The previous prime is 205000453240481. The next prime is 205000453240529. The reversal of 205000453240520 is 25042354000502.

205000453240520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (205000453240529) 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, 64448891 + ... + 67554869.

It is an arithmetic number, because the mean of its divisors is an integer number (4158689801400).

Almost surely, 2^{205000453240520} is an apocalyptic number.

205000453240520 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 205000453240520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266156147289600).

205000453240520 is an abundant number, since it is smaller than the sum of its proper divisors (327311841338680).

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

205000453240520 is a wasteful number, since it uses less digits than its factorization.

205000453240520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108307 (or 3108303 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

The spelling of 205000453240520 in words is "two hundred five trillion, four hundred fifty-three million, two hundred forty thousand, five hundred twenty".