99394463604128 has 576 divisors, whose sum is σ = 282813692313600. Its totient is φ = 33414969139200.

The previous prime is 99394463604053. The next prime is 99394463604131. The reversal of 99394463604128 is 82140636449399.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 271209233 + ... + 271575471.

It is an arithmetic number, because the mean of its divisors is an integer number (490995993600).

Almost surely, 2^{99394463604128} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99394463604128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141406846156800).

99394463604128 is an abundant number, since it is smaller than the sum of its proper divisors (183419228709472).

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

99394463604128 is a wasteful number, since it uses less digits than its factorization.

99394463604128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366345 (or 366326 counting only the distinct ones).

The product of its (nonzero) digits is 241864704, while the sum is 68.

The spelling of 99394463604128 in words is "ninety-nine trillion, three hundred ninety-four billion, four hundred sixty-three million, six hundred four thousand, one hundred twenty-eight".