99118487880 has 192 divisors, whose sum is σ = 342093024000. Its totient is φ = 24818669568.

The previous prime is 99118487827. The next prime is 99118487921. The reversal of 99118487880 is 8878481199.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 708801 + ... + 837039.

It is an arithmetic number, because the mean of its divisors is an integer number (1781734500).

Almost surely, 2^99118487880 is an apocalyptic number.

99118487880 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99118487880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171046512000).

99118487880 is an abundant number, since it is smaller than the sum of its proper divisors (242974536120).

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

99118487880 is a wasteful number, since it uses less digits than its factorization.

99118487880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128388 (or 128381 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 63.

The spelling of 99118487880 in words is "ninety-nine billion, one hundred eighteen million, four hundred eighty-seven thousand, eight hundred eighty".