204664430226 has 16 divisors (see below), whose sum is σ = 409621464000. Its totient is φ = 68172709488.

The previous prime is 204664430221. The next prime is 204664430231. The reversal of 204664430226 is 622034466402.

204664430226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (204664430221) and next prime (204664430231).

It is a super-2 number, since 2×204664430226² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204664430221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12182721 + ... + 12199508.

It is an arithmetic number, because the mean of its divisors is an integer number (25601341500).

Almost surely, 2^204664430226 is an apocalyptic number.

204664430226 is an abundant number, since it is smaller than the sum of its proper divisors (204957033774).

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

204664430226 is a wasteful number, since it uses less digits than its factorization.

204664430226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24383633.

The product of its (nonzero) digits is 331776, while the sum is 39.

Adding to 204664430226 its reverse (622034466402), we get a palindrome (826698896628).

The spelling of 204664430226 in words is "two hundred four billion, six hundred sixty-four million, four hundred thirty thousand, two hundred twenty-six".