204312066197 has 8 divisors (see below), whose sum is σ = 206799886944. Its totient is φ = 201824870128.

The previous prime is 204312066181. The next prime is 204312066221. The reversal of 204312066197 is 791660213402.

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

It is a cyclic number.

It is not a de Polignac number, because 204312066197 - 2⁴ = 204312066181 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 (204312066137) 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, 519638 + ... + 823800.

It is an arithmetic number, because the mean of its divisors is an integer number (25849985868).

Almost surely, 2^204312066197 is an apocalyptic number.

It is an amenable number.

204312066197 is a deficient number, since it is larger than the sum of its proper divisors (2487820747).

204312066197 is an equidigital number, since it uses as much as digits as its factorization.

204312066197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312339.

The product of its (nonzero) digits is 108864, while the sum is 41.

Adding to 204312066197 its reverse (791660213402), we get a palindrome (995972279599).

The spelling of 204312066197 in words is "two hundred four billion, three hundred twelve million, sixty-six thousand, one hundred ninety-seven".