181600413316 has 81 divisors (see below), whose sum is σ = 376601050917. Its totient is φ = 76399454880.

The previous prime is 181600413299. The next prime is 181600413331. The reversal of 181600413316 is 613314006181.

The square root of 181600413316 is 426146.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5905307716 + 175695105600 = 76846^2 + 419160^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 363928435 + ... + 363928933.

Almost surely, 2^181600413316 is an apocalyptic number.

181600413316 is the 426146-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181600413316

181600413316 is an abundant number, since it is smaller than the sum of its proper divisors (195000637601).

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

181600413316 is an frugal number, since it uses more digits than its factorization.

181600413316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

Adding to 181600413316 its reverse (613314006181), we get a palindrome (794914419497).

The spelling of 181600413316 in words is "one hundred eighty-one billion, six hundred million, four hundred thirteen thousand, three hundred sixteen".