204052665 has 16 divisors (see below), whose sum is σ = 340679808. Its totient is φ = 104096256.

The previous prime is 204052663. The next prime is 204052697. The reversal of 204052665 is 566250402.

It is not a de Polignac number, because 204052665 - 2¹ = 204052663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204052663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295384 + ... + 296073.

It is an arithmetic number, because the mean of its divisors is an integer number (21292488).

Almost surely, 2^204052665 is an apocalyptic number.

It is an amenable number.

204052665 is a deficient number, since it is larger than the sum of its proper divisors (136627143).

204052665 is a wasteful number, since it uses less digits than its factorization.

204052665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591488.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 204052665 is about 14284.7003818771. The cubic root of 204052665 is about 588.7271852537.

The spelling of 204052665 in words is "two hundred four million, fifty-two thousand, six hundred sixty-five".