99204163430400 has 720 divisors, whose sum is σ = 419921357375520. Its totient is φ = 22675230720000.

The previous prime is 99204163430377. The next prime is 99204163430419. The reversal of 99204163430400 is 403436140299.

99204163430400 is a `hidden beast` number, since 9 + 9 + 2 + 0 + 4 + 1 + 634 + 3 + 0 + 4 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 27321775 + ... + 30739025.

It is an arithmetic number, because the mean of its divisors is an integer number (583224107466).

Almost surely, 2^{99204163430400} is an apocalyptic number.

99204163430400 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99204163430400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209960678687760).

99204163430400 is an abundant number, since it is smaller than the sum of its proper divisors (320717193945120).

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

99204163430400 is a wasteful number, since it uses less digits than its factorization.

99204163430400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417302 (or 3417268 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

Adding to 99204163430400 its reverse (403436140299), we get a palindrome (99607599570699).

The spelling of 99204163430400 in words is "ninety-nine trillion, two hundred four billion, one hundred sixty-three million, four hundred thirty thousand, four hundred".