99911998200 has 384 divisors, whose sum is σ = 361246878720. Its totient is φ = 22372761600.

The previous prime is 99911998189. The next prime is 99911998217. The reversal of 99911998200 is 289911999.

It is a congruent number.

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, 41961010 + ... + 41963390.

It is an arithmetic number, because the mean of its divisors is an integer number (940747080).

Almost surely, 2^99911998200 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 99911998200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180623439360).

99911998200 is an abundant number, since it is smaller than the sum of its proper divisors (261334880520).

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

99911998200 is a wasteful number, since it uses less digits than its factorization.

99911998200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607 (or 2598 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 57.

The spelling of 99911998200 in words is "ninety-nine billion, nine hundred eleven million, nine hundred ninety-eight thousand, two hundred".