204550445120 has 84 divisors (see below), whose sum is σ = 566609994540. Its totient is φ = 70131575808.

The previous prime is 204550445107. The next prime is 204550445129. The reversal of 204550445120 is 21544055402.

It can be written as a sum of positive squares in 2 ways, for example, as 153137603584 + 51412841536 = 391328^2 + 226744^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (204550445129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6506975 + ... + 6538334.

Almost surely, 2^204550445120 is an apocalyptic number.

204550445120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204550445120 is an abundant number, since it is smaller than the sum of its proper divisors (362059549420).

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

204550445120 is a wasteful number, since it uses less digits than its factorization.

204550445120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13045340 (or 13045323 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The spelling of 204550445120 in words is "two hundred four billion, five hundred fifty million, four hundred forty-five thousand, one hundred twenty".