108991092240 has 400 divisors, whose sum is σ = 406819176192. Its totient is φ = 26944524288.

The previous prime is 108991092239. The next prime is 108991092247. The reversal of 108991092240 is 42290199801.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (108991092247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7373337 + ... + 7388103.

Almost surely, 2^108991092240 is an apocalyptic number.

108991092240 is a gapful number since it is divisible by the number (10) 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 108991092240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203409588096).

108991092240 is an abundant number, since it is smaller than the sum of its proper divisors (297828083952).

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

108991092240 is a wasteful number, since it uses less digits than its factorization.

108991092240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14876 (or 14861 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 108991092240 in words is "one hundred eight billion, nine hundred ninety-one million, ninety-two thousand, two hundred forty".