204661797801 has 8 divisors (see below), whose sum is σ = 272884673280. Its totient is φ = 136440060432.

The previous prime is 204661797761. The next prime is 204661797863. The reversal of 204661797801 is 108797166402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204661797801 - 2¹⁰ = 204661796777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204661797101) 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, 316351 + ... + 713723.

It is an arithmetic number, because the mean of its divisors is an integer number (34110584160).

Almost surely, 2^204661797801 is an apocalyptic number.

It is an amenable number.

204661797801 is a deficient number, since it is larger than the sum of its proper divisors (68222875479).

204661797801 is a wasteful number, since it uses less digits than its factorization.

204661797801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569055.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 204661797801 in words is "two hundred four billion, six hundred sixty-one million, seven hundred ninety-seven thousand, eight hundred one".