216707541211 has 16 divisors (see below), whose sum is σ = 250816527360. Its totient is φ = 183395393280.

The previous prime is 216707541209. The next prime is 216707541229. The reversal of 216707541211 is 112145707612.

It is a cyclic number.

It is not a de Polignac number, because 216707541211 - 2¹ = 216707541209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216707541811) 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, 96355 + ... + 665356.

It is an arithmetic number, because the mean of its divisors is an integer number (15676032960).

Almost surely, 2^216707541211 is an apocalyptic number.

216707541211 is a deficient number, since it is larger than the sum of its proper divisors (34108986149).

216707541211 is an equidigital number, since it uses as much as digits as its factorization.

216707541211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762234.

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 216707541211 in words is "two hundred sixteen billion, seven hundred seven million, five hundred forty-one thousand, two hundred eleven".