211616041 has 16 divisors (see below), whose sum is σ = 261442048. Its totient is φ = 166795200.

The previous prime is 211616039. The next prime is 211616063. The reversal of 211616041 is 140616112.

It is not a de Polignac number, because 211616041 - 2¹ = 211616039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211616011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20371 + ... + 28951.

It is an arithmetic number, because the mean of its divisors is an integer number (16340128).

Almost surely, 2^211616041 is an apocalyptic number.

It is an amenable number.

211616041 is a deficient number, since it is larger than the sum of its proper divisors (49826007).

211616041 is a wasteful number, since it uses less digits than its factorization.

211616041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8872.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 211616041 is about 14547.0285969335. The cubic root of 211616041 is about 595.9130026689.

The spelling of 211616041 in words is "two hundred eleven million, six hundred sixteen thousand, forty-one".