216532411 has 2 divisors, whose sum is σ = 216532412. Its totient is φ = 216532410.

The previous prime is 216532403. The next prime is 216532423. The reversal of 216532411 is 114235612.

It is a happy number.

216532411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216532411 - 2³ = 216532403 is a prime.

It is not a weakly prime, because it can be changed into another prime (216532441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108266205 + 108266206.

It is an arithmetic number, because the mean of its divisors is an integer number (108266206).

Almost surely, 2^216532411 is an apocalyptic number.

216532411 is a deficient number, since it is larger than the sum of its proper divisors (1).

216532411 is an equidigital number, since it uses as much as digits as its factorization.

216532411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 216532411 is about 14715.0402989594. The cubic root of 216532411 is about 600.4925686643.

The spelling of 216532411 in words is "two hundred sixteen million, five hundred thirty-two thousand, four hundred eleven".