204787761160 has 16 divisors (see below), whose sum is σ = 460772462700. Its totient is φ = 81915104448.

The previous prime is 204787761149. The next prime is 204787761187. The reversal of 204787761160 is 61167787402.

It can be written as a sum of positive squares in 2 ways, for example, as 189752587236 + 15035173924 = 435606^2 + 122618^2 .

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, 2559846975 + ... + 2559847054.

Almost surely, 2^204787761160 is an apocalyptic number.

204787761160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204787761160 is an abundant number, since it is smaller than the sum of its proper divisors (255984701540).

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

204787761160 is a wasteful number, since it uses less digits than its factorization.

204787761160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5119694040 (or 5119694036 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 204787761160 in words is "two hundred four billion, seven hundred eighty-seven million, seven hundred sixty-one thousand, one hundred sixty".