99408915500 has 24 divisors (see below), whose sum is σ = 217109072544. Its totient is φ = 39763566000.

The previous prime is 99408915499. The next prime is 99408915509. The reversal of 99408915500 is 551980499.

99408915500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×99408915500² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (99408915509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99408416 + ... + 99409415.

It is an arithmetic number, because the mean of its divisors is an integer number (9046211356).

Almost surely, 2^99408915500 is an apocalyptic number.

It is an amenable number.

99408915500 is an abundant number, since it is smaller than the sum of its proper divisors (117700157044).

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

99408915500 is a wasteful number, since it uses less digits than its factorization.

99408915500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198817850 (or 198817838 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 50.

The spelling of 99408915500 in words is "ninety-nine billion, four hundred eight million, nine hundred fifteen thousand, five hundred".