99990910000 has 200 divisors, whose sum is σ = 249804836864. Its totient is φ = 38737440000.

The previous prime is 99990909983. The next prime is 99990910039. The reversal of 99990910000 is 1909999.

It is a tau number, because it is divible by the number of its divisors (200).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54609085 + ... + 54610915.

Almost surely, 2^99990910000 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 99990910000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124902418432).

99990910000 is an abundant number, since it is smaller than the sum of its proper divisors (149813926864).

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

99990910000 is a wasteful number, since it uses less digits than its factorization.

99990910000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029 (or 2008 counting only the distinct ones).

The product of its (nonzero) digits is 59049, while the sum is 46.

The spelling of 99990910000 in words is "ninety-nine billion, nine hundred ninety million, nine hundred ten thousand".