204520500049536 has 1024 divisors, whose sum is σ = 675731574720000. Its totient is φ = 61132647628800.

The previous prime is 204520500049531. The next prime is 204520500049559. The reversal of 204520500049536 is 635940005025402.

204520500049536 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 20 + 50 + 0 + 0 + 49 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 204520500049491 and 204520500049500.

It is not an unprimeable number, because it can be changed into a prime (204520500049531) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 181151903820 + ... + 181151904948.

Almost surely, 2^{204520500049536} 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 204520500049536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337865787360000).

204520500049536 is an abundant number, since it is smaller than the sum of its proper divisors (471211074670464).

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

204520500049536 is an equidigital number, since it uses as much as digits as its factorization.

204520500049536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925 (or 1895 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 204520500049536 in words is "two hundred four trillion, five hundred twenty billion, five hundred million, forty-nine thousand, five hundred thirty-six".