216015632 has 40 divisors (see below), whose sum is σ = 499122816. Its totient is φ = 88551936.

The previous prime is 216015601. The next prime is 216015637. The reversal of 216015632 is 236510612.

216015632 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216015637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39353 + ... + 44504.

Almost surely, 2^216015632 is an apocalyptic number.

It is an amenable number.

216015632 is an abundant number, since it is smaller than the sum of its proper divisors (283107184).

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

216015632 is a wasteful number, since it uses less digits than its factorization.

216015632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83895 (or 83889 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 216015632 is about 14697.4702585173. The cubic root of 216015632 is about 600.0144737249.

The spelling of 216015632 in words is "two hundred sixteen million, fifteen thousand, six hundred thirty-two".