216180841 has 8 divisors (see below), whose sum is σ = 237453120. Its totient is φ = 195898032.

The previous prime is 216180827. The next prime is 216180847. The reversal of 216180841 is 148081612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216180841 - 2¹⁵ = 216148073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216180847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246910 + ... + 247783.

It is an arithmetic number, because the mean of its divisors is an integer number (29681640).

Almost surely, 2^216180841 is an apocalyptic number.

It is an amenable number.

216180841 is a deficient number, since it is larger than the sum of its proper divisors (21272279).

216180841 is a wasteful number, since it uses less digits than its factorization.

216180841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494735.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 216180841 is about 14703.0895052707. The cubic root of 216180841 is about 600.1673986622.

The spelling of 216180841 in words is "two hundred sixteen million, one hundred eighty thousand, eight hundred forty-one".