99816418880 has 112 divisors (see below), whose sum is σ = 246387640320. Its totient is φ = 38476032000.

The previous prime is 99816418879. The next prime is 99816418883. The reversal of 99816418880 is 8881461899.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is not an unprimeable number, because it can be changed into a prime (99816418883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2349830 + ... + 2391930.

Almost surely, 2^99816418880 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 99816418880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123193820160).

99816418880 is an abundant number, since it is smaller than the sum of its proper divisors (146571221440).

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

99816418880 is a wasteful number, since it uses less digits than its factorization.

99816418880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42388 (or 42378 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 62.

The spelling of 99816418880 in words is "ninety-nine billion, eight hundred sixteen million, four hundred eighteen thousand, eight hundred eighty".