204496663400 has 48 divisors (see below), whose sum is σ = 475853834700. Its totient is φ = 81730004480.

The previous prime is 204496663387. The next prime is 204496663403. The reversal of 204496663400 is 4366694402.

It can be written as a sum of positive squares in 6 ways, for example, as 145162524004 + 59334139396 = 381002^2 + 243586^2 .

It is not an unprimeable number, because it can be changed into a prime (204496663403) 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 11 ways as a sum of consecutive naturals, for example, 189935 + ... + 667134.

Almost surely, 2^204496663400 is an apocalyptic number.

204496663400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204496663400 is an abundant number, since it is smaller than the sum of its proper divisors (271357171300).

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

204496663400 is a wasteful number, since it uses less digits than its factorization.

204496663400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858278 (or 858269 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 44.

The spelling of 204496663400 in words is "two hundred four billion, four hundred ninety-six million, six hundred sixty-three thousand, four hundred".