204880117280 has 24 divisors (see below), whose sum is σ = 484029277452. Its totient is φ = 81952046848.

The previous prime is 204880117259. The next prime is 204880117297. The reversal of 204880117280 is 82711088402.

It can be written as a sum of positive squares in 2 ways, for example, as 191049416464 + 13830700816 = 437092^2 + 117604^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640250207 + ... + 640250526.

Almost surely, 2^204880117280 is an apocalyptic number.

204880117280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204880117280 is an abundant number, since it is smaller than the sum of its proper divisors (279149160172).

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

204880117280 is a wasteful number, since it uses less digits than its factorization.

204880117280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280500748 (or 1280500740 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 41.

The spelling of 204880117280 in words is "two hundred four billion, eight hundred eighty million, one hundred seventeen thousand, two hundred eighty".