108801840640 has 80 divisors (see below), whose sum is σ = 261128295648. Its totient is φ = 43477549056.

The previous prime is 108801840571. The next prime is 108801840677. The reversal of 108801840640 is 46048108801.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 108801840593 and 108801840602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2623909 + ... + 2665051.

Almost surely, 2^108801840640 is an apocalyptic number.

108801840640 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 108801840640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130564147824).

108801840640 is an abundant number, since it is smaller than the sum of its proper divisors (152326455008).

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

108801840640 is an equidigital number, since it uses as much as digits as its factorization.

108801840640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42199 (or 42183 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The spelling of 108801840640 in words is "one hundred eight billion, eight hundred one million, eight hundred forty thousand, six hundred forty".