216544250611 has 8 divisors (see below), whose sum is σ = 233220847104. Its totient is φ = 199870417920.

The previous prime is 216544250579. The next prime is 216544250621. The reversal of 216544250611 is 116052445612.

216544250611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 216544250611 - 2⁵ = 216544250579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216544250621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526771 + ... + 842956.

It is an arithmetic number, because the mean of its divisors is an integer number (29152605888).

Almost surely, 2^216544250611 is an apocalyptic number.

216544250611 is a deficient number, since it is larger than the sum of its proper divisors (16676596493).

216544250611 is a wasteful number, since it uses less digits than its factorization.

216544250611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381901.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 216544250611 in words is "two hundred sixteen billion, five hundred forty-four million, two hundred fifty thousand, six hundred eleven".