204181682130 has 24 divisors (see below), whose sum is σ = 530872373772. Its totient is φ = 54448448544.

The previous prime is 204181682129. The next prime is 204181682197. The reversal of 204181682130 is 31286181402.

204181682130 is a `hidden beast` number, since 20 + 418 + 1 + 6 + 8 + 213 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 201666559329 + 2515122801 = 449073^2 + 50151^2 .

It is a super-2 number, since 2×204181682130² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1134342589 + ... + 1134342768.

Almost surely, 2^204181682130 is an apocalyptic number.

204181682130 is an abundant number, since it is smaller than the sum of its proper divisors (326690691642).

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

204181682130 is a wasteful number, since it uses less digits than its factorization.

204181682130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268685370 (or 2268685367 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 204181682130 in words is "two hundred four billion, one hundred eighty-one million, six hundred eighty-two thousand, one hundred thirty".