204312066196 has 18 divisors (see below), whose sum is σ = 415920992298. Its totient is φ = 87562314000.

The previous prime is 204312066181. The next prime is 204312066221. The reversal of 204312066196 is 691660213402.

It can be written as a sum of positive squares in only one way, i.e., 204041924100 + 270142096 = 451710^2 + 16436^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 521204055 + ... + 521204446.

Almost surely, 2^204312066196 is an apocalyptic number.

It is an amenable number.

204312066196 is an abundant number, since it is smaller than the sum of its proper divisors (211608926102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204312066196 is a wasteful number, since it uses less digits than its factorization.

204312066196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042408519 (or 1042408510 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

Adding to 204312066196 its reverse (691660213402), we get a palindrome (895972279598).

The spelling of 204312066196 in words is "two hundred four billion, three hundred twelve million, sixty-six thousand, one hundred ninety-six".