108803135581 has 24 divisors (see below), whose sum is σ = 125968128000. Its totient is φ = 92053493280.

The previous prime is 108803135563. The next prime is 108803135593. The reversal of 108803135581 is 185531308801.

It is a happy number.

It is not a de Polignac number, because 108803135581 - 2⁹ = 108803135069 is a prime.

It is a super-2 number, since 2×108803135581² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108803135381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39577795 + ... + 39580543.

It is an arithmetic number, because the mean of its divisors is an integer number (5248672000).

Almost surely, 2^108803135581 is an apocalyptic number.

It is an amenable number.

108803135581 is a deficient number, since it is larger than the sum of its proper divisors (17164992419).

108803135581 is an equidigital number, since it uses as much as digits as its factorization.

108803135581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 43.

The spelling of 108803135581 in words is "one hundred eight billion, eight hundred three million, one hundred thirty-five thousand, five hundred eighty-one".