99908868816 has 60 divisors (see below), whose sum is σ = 288625633920. Its totient is φ = 32228665920.

The previous prime is 99908868809. The next prime is 99908868817. The reversal of 99908868816 is 61886880999.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99908868817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11186046 + ... + 11194973.

It is an arithmetic number, because the mean of its divisors is an integer number (4810427232).

Almost surely, 2^99908868816 is an apocalyptic number.

It is an amenable number.

99908868816 is an abundant number, since it is smaller than the sum of its proper divisors (188716765104).

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

99908868816 is a wasteful number, since it uses less digits than its factorization.

99908868816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22381064 (or 22381055 counting only the distinct ones).

The product of its (nonzero) digits is 107495424, while the sum is 72.

The spelling of 99908868816 in words is "ninety-nine billion, nine hundred eight million, eight hundred sixty-eight thousand, eight hundred sixteen".