211382016169 has 3 divisors (see below), whose sum is σ = 211382475933. Its totient is φ = 211381556406.

The previous prime is 211382016113. The next prime is 211382016191. The reversal of 211382016169 is 961610283112.

The square root of 211382016169 is 459763.

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

211382016169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 211382016169 - 2³⁵ = 177022277801 is a prime.

It is a super-2 number, since 2×211382016169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211382016569) 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 2 ways as a sum of consecutive naturals, for example, 229882 + ... + 689644.

It is an arithmetic number, because the mean of its divisors is an integer number (70460825311).

Almost surely, 2^211382016169 is an apocalyptic number.

211382016169 is the 459763-rd square number.

211382016169 is the 229882-nd centered octagonal number.

It is an amenable number.

211382016169 is a deficient number, since it is larger than the sum of its proper divisors (459764).

211382016169 is an frugal number, since it uses more digits than its factorization.

211382016169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919526 (or 459763 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 211382016169 in words is "two hundred eleven billion, three hundred eighty-two million, sixteen thousand, one hundred sixty-nine".