204676160798677 has 4 divisors (see below), whose sum is σ = 204786142617196. Its totient is φ = 204566178980160.

The previous prime is 204676160798657. The next prime is 204676160798717. The reversal of 204676160798677 is 776897061676402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30786418199601 + 173889742599076 = 5548551^2 + 13186726^2 .

It is a cyclic number.

It is not a de Polignac number, because 204676160798677 - 2¹⁹ = 204676160274389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204676160798657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54990906468 + ... + 54990910189.

It is an arithmetic number, because the mean of its divisors is an integer number (51196535654299).

Almost surely, 2^{204676160798677} is an apocalyptic number.

It is an amenable number.

204676160798677 is a deficient number, since it is larger than the sum of its proper divisors (109981818519).

204676160798677 is a wasteful number, since it uses less digits than its factorization.

204676160798677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109981818518.

The product of its (nonzero) digits is 1792336896, while the sum is 76.

The spelling of 204676160798677 in words is "two hundred four trillion, six hundred seventy-six billion, one hundred sixty million, seven hundred ninety-eight thousand, six hundred seventy-seven".