204664379338 has 8 divisors (see below), whose sum is σ = 307104941988. Its totient is φ = 102296065344.

The previous prime is 204664379321. The next prime is 204664379351. The reversal of 204664379338 is 833973466402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 197565137289 + 7099242049 = 444483^2 + 84257^2 .

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

It is a super-3 number, since 3×204664379338³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18055081 + ... + 18066412.

Almost surely, 2^204664379338 is an apocalyptic number.

204664379338 is a deficient number, since it is larger than the sum of its proper divisors (102440562650).

204664379338 is a wasteful number, since it uses less digits than its factorization.

204664379338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36124328.

The product of its (nonzero) digits is 15676416, while the sum is 55.

The spelling of 204664379338 in words is "two hundred four billion, six hundred sixty-four million, three hundred seventy-nine thousand, three hundred thirty-eight".