181108880 has 20 divisors (see below), whose sum is σ = 421078332. Its totient is φ = 72443520.

The previous prime is 181108861. The next prime is 181108883. The reversal of 181108880 is 88801181.

181108880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 62473216 + 118635664 = 7904^2 + 10892^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 181108880.

It is not an unprimeable number, because it can be changed into a prime (181108883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1131851 + ... + 1132010.

Almost surely, 2^181108880 is an apocalyptic number.

181108880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181108880 is an abundant number, since it is smaller than the sum of its proper divisors (239969452).

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

181108880 is a wasteful number, since it uses less digits than its factorization.

181108880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263874 (or 2263868 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 35.

The square root of 181108880 is about 13457.6699320499. The cubic root of 181108880 is about 565.7786845904.

The spelling of 181108880 in words is "one hundred eighty-one million, one hundred eight thousand, eight hundred eighty".