216335845 has 8 divisors (see below), whose sum is σ = 283203360. Its totient is φ = 157335120.

The previous prime is 216335837. The next prime is 216335851. The reversal of 216335845 is 548533612.

216335845 is digitally balanced in base 2, 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.

It is not a de Polignac number, because 216335845 - 2³ = 216335837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966635 + ... + 1966744.

It is an arithmetic number, because the mean of its divisors is an integer number (35400420).

Almost surely, 2^216335845 is an apocalyptic number.

It is an amenable number.

216335845 is a deficient number, since it is larger than the sum of its proper divisors (66867515).

216335845 is a wasteful number, since it uses less digits than its factorization.

216335845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933395.

The product of its digits is 86400, while the sum is 37.

The square root of 216335845 is about 14708.3596978045. The cubic root of 216335845 is about 600.3108065636.

The spelling of 216335845 in words is "two hundred sixteen million, three hundred thirty-five thousand, eight hundred forty-five".