216056180845 has 16 divisors (see below), whose sum is σ = 259881148800. Its totient is φ = 172436209344.

The previous prime is 216056180831. The next prime is 216056180849. The reversal of 216056180845 is 548081650612.

It is a cyclic number.

It is not a de Polignac number, because 216056180845 - 2¹¹ = 216056178797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216056180795 and 216056180804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216056180849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4262742 + ... + 4313128.

It is an arithmetic number, because the mean of its divisors is an integer number (16242571800).

Almost surely, 2^216056180845 is an apocalyptic number.

It is an amenable number.

216056180845 is a deficient number, since it is larger than the sum of its proper divisors (43824967955).

216056180845 is a wasteful number, since it uses less digits than its factorization.

216056180845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52404.

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 216056180845 in words is "two hundred sixteen billion, fifty-six million, one hundred eighty thousand, eight hundred forty-five".