204344432451100 has 72 divisors (see below), whose sum is σ = 449524362036960. Its totient is φ = 80614024980480.

The previous prime is 204344432451041. The next prime is 204344432451109. The reversal of 204344432451100 is 1154234443402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 204344432451100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204344432451109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146642436 + ... + 148029364.

It is an arithmetic number, because the mean of its divisors is an integer number (6243393917180).

Almost surely, 2^{204344432451100} is an apocalyptic number.

204344432451100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204344432451100 is an abundant number, since it is smaller than the sum of its proper divisors (245179929585860).

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

204344432451100 is a wasteful number, since it uses less digits than its factorization.

204344432451100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407199 (or 1407192 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 204344432451100 its reverse (1154234443402), we get a palindrome (205498666894502).

The spelling of 204344432451100 in words is "two hundred four trillion, three hundred forty-four billion, four hundred thirty-two million, four hundred fifty-one thousand, one hundred".