204265666023 has 32 divisors (see below), whose sum is σ = 283484620800. Its totient is φ = 130689761280.

The previous prime is 204265665973. The next prime is 204265666081. The reversal of 204265666023 is 320666562402.

It is not a de Polignac number, because 204265666023 - 2²⁶ = 204198557159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204265666093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5406703 + ... + 5444351.

It is an arithmetic number, because the mean of its divisors is an integer number (8858894400).

Almost surely, 2^204265666023 is an apocalyptic number.

204265666023 is a deficient number, since it is larger than the sum of its proper divisors (79218954777).

204265666023 is a wasteful number, since it uses less digits than its factorization.

204265666023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38167.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 204265666023 in words is "two hundred four billion, two hundred sixty-five million, six hundred sixty-six thousand, twenty-three".