216016530 has 16 divisors (see below), whose sum is σ = 518439744. Its totient is φ = 57604400.

The previous prime is 216016517. The next prime is 216016571. The reversal of 216016530 is 35610612.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216016530.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3600246 + ... + 3600305.

It is an arithmetic number, because the mean of its divisors is an integer number (32402484).

Almost surely, 2^216016530 is an apocalyptic number.

216016530 is an abundant number, since it is smaller than the sum of its proper divisors (302423214).

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

216016530 is a wasteful number, since it uses less digits than its factorization.

216016530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200561.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 216016530 is about 14697.5008079605. The cubic root of 216016530 is about 600.0153051651.

The spelling of 216016530 in words is "two hundred sixteen million, sixteen thousand, five hundred thirty".