216327550 has 48 divisors (see below), whose sum is σ = 427941360. Its totient is φ = 81077760.

The previous prime is 216327497. The next prime is 216327577. The reversal of 216327550 is 55723612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260536 + ... + 261364.

It is an arithmetic number, because the mean of its divisors is an integer number (8915445).

Almost surely, 2^216327550 is an apocalyptic number.

216327550 is a deficient number, since it is larger than the sum of its proper divisors (211613810).

216327550 is a wasteful number, since it uses less digits than its factorization.

216327550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 216327550 is about 14708.0777126041. The cubic root of 216327550 is about 600.3031338610.

The spelling of 216327550 in words is "two hundred sixteen million, three hundred twenty-seven thousand, five hundred fifty".