99169728834 has 64 divisors (see below), whose sum is σ = 223681772160. Its totient is φ = 29049408000.

The previous prime is 99169728829. The next prime is 99169728851. The reversal of 99169728834 is 43882796199.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126844 + ... + 463064.

It is an arithmetic number, because the mean of its divisors is an integer number (3495027690).

Almost surely, 2^99169728834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99169728834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111840886080).

99169728834 is an abundant number, since it is smaller than the sum of its proper divisors (124512043326).

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

99169728834 is a wasteful number, since it uses less digits than its factorization.

99169728834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336387.

The product of its digits is 47029248, while the sum is 66.

The spelling of 99169728834 in words is "ninety-nine billion, one hundred sixty-nine million, seven hundred twenty-eight thousand, eight hundred thirty-four".