99099040000000 has 288 divisors, whose sum is σ = 248001602907240. Its totient is φ = 39589248000000.

The previous prime is 99099039999941. The next prime is 99099040000001. The reversal of 99099040000000 is 4099099.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 4 ways, for example, as 59775906694144 + 39323133305856 = 7731488^2 + 6270816^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 99099039999899 and 99099039999908.

It is not an unprimeable number, because it can be changed into a prime (99099040000001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125919999607 + ... + 125920000393.

Almost surely, 2^{99099040000000} 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 99099040000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124000801453620).

99099040000000 is an abundant number, since it is smaller than the sum of its proper divisors (148902562907240).

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

99099040000000 is an frugal number, since it uses more digits than its factorization.

99099040000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 40.

99099040000000 divided by its sum of digits (40) gives a square (2477476000000 = 1574000²).

Adding to 99099040000000 its reverse (4099099), we get a palindrome (99099044099099).

The spelling of 99099040000000 in words is "ninety-nine trillion, ninety-nine billion, forty million", and thus it is an aban number and an uban number.