181668096 has 90 divisors (see below), whose sum is σ = 541763222. Its totient is φ = 60549120.

The previous prime is 181668083. The next prime is 181668107. The reversal of 181668096 is 690866181.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 116640000 + 65028096 = 10800^2 + 8064^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16356 + ... + 25116.

Almost surely, 2^181668096 is an apocalyptic number.

181668096 is a gapful number since it is divisible by the number (16) 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 181668096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270881611).

181668096 is an abundant number, since it is smaller than the sum of its proper divisors (360095126).

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

181668096 is an frugal number, since it uses more digits than its factorization.

181668096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8789 (or 8766 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 181668096 is about 13478.4307691956. The cubic root of 181668096 is about 566.3604109072.

It can be divided in two parts, 18166 and 8096, that added together give a palindrome (26262).

The spelling of 181668096 in words is "one hundred eighty-one million, six hundred sixty-eight thousand, ninety-six".