216411522 has 8 divisors (see below), whose sum is σ = 432823056. Its totient is φ = 72137172.

The previous prime is 216411497. The next prime is 216411553. The reversal of 216411522 is 225114612.

216411522 is digitally balanced in base 3, 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.

216411522 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 216411492 and 216411501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18034288 + ... + 18034299.

It is an arithmetic number, because the mean of its divisors is an integer number (54102882).

Almost surely, 2^216411522 is an apocalyptic number.

216411522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216411522 is a wasteful number, since it uses less digits than its factorization.

216411522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36068592.

The product of its digits is 960, while the sum is 24.

The square root of 216411522 is about 14710.9320574870. The cubic root of 216411522 is about 600.3807971603.

The spelling of 216411522 in words is "two hundred sixteen million, four hundred eleven thousand, five hundred twenty-two".