181228513348996 has 27 divisors (see below), whose sum is σ = 317599137862671. Its totient is φ = 90486083887104.

The previous prime is 181228513348931. The next prime is 181228513348997. The reversal of 181228513348996 is 699843315822181.

The square root of 181228513348996 is 13462114.

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

It can be written as a sum of positive squares in 4 ways, for example, as 16898265562500 + 164330247786496 = 4110750^2 + 12819136^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (181228513348997) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20704726956 + ... + 20704735708.

Almost surely, 2^{181228513348996} is an apocalyptic number.

181228513348996 is the 13462114-th square number.

It is an amenable number.

181228513348996 is a deficient number, since it is larger than the sum of its proper divisors (136370624513675).

181228513348996 is an frugal number, since it uses more digits than its factorization.

181228513348996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19048 (or 9524 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 70.

The spelling of 181228513348996 in words is "one hundred eighty-one trillion, two hundred twenty-eight billion, five hundred thirteen million, three hundred forty-eight thousand, nine hundred ninety-six".