204537682120 has 32 divisors (see below), whose sum is σ = 487280950200. Its totient is φ = 77002421248.

The previous prime is 204537682061. The next prime is 204537682121. The reversal of 204537682120 is 21286735402.

It can be written as a sum of positive squares in 4 ways, for example, as 189968709316 + 14568972804 = 435854^2 + 120702^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (204537682121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150394675 + ... + 150396034.

Almost surely, 2^204537682120 is an apocalyptic number.

204537682120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204537682120 is an abundant number, since it is smaller than the sum of its proper divisors (282743268080).

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

204537682120 is a wasteful number, since it uses less digits than its factorization.

204537682120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300790737 (or 300790733 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 204537682120 in words is "two hundred four billion, five hundred thirty-seven million, six hundred eighty-two thousand, one hundred twenty".