99136080 has 120 divisors (see below), whose sum is σ = 335434632. Its totient is φ = 26237952.

The previous prime is 99136069. The next prime is 99136097. The reversal of 99136080 is 8063199.

It can be written as a sum of positive squares in 4 ways, for example, as 15303744 + 83832336 = 3912^2 + 9156^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112602 + ... + 113478.

Almost surely, 2^99136080 is an apocalyptic number.

99136080 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 99136080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167717316).

99136080 is an abundant number, since it is smaller than the sum of its proper divisors (236298552).

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

99136080 is a wasteful number, since it uses less digits than its factorization.

99136080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 99136080 is about 9956.7103000941. The cubic root of 99136080 is about 462.8183617648.

The spelling of 99136080 in words is "ninety-nine million, one hundred thirty-six thousand, eighty".