99191217168 has 200 divisors, whose sum is σ = 300229319808. Its totient is φ = 31556625408.

The previous prime is 99191217137. The next prime is 99191217193. The reversal of 99191217168 is 86171219199.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 14513080 + ... + 14519912.

Almost surely, 2^99191217168 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 99191217168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150114659904).

99191217168 is an abundant number, since it is smaller than the sum of its proper divisors (201038102640).

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

99191217168 is a wasteful number, since it uses less digits than its factorization.

99191217168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363 (or 7348 counting only the distinct ones).

The product of its digits is 489888, while the sum is 54.

The spelling of 99191217168 in words is "ninety-nine billion, one hundred ninety-one million, two hundred seventeen thousand, one hundred sixty-eight".