216075366 has 24 divisors (see below), whose sum is σ = 504176400. Its totient is φ = 66484656.

The previous prime is 216075337. The next prime is 216075373. The reversal of 216075366 is 663570612.

It is a self number, because there is not a number n which added to its sum of digits gives 216075366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 461466 + ... + 461933.

It is an arithmetic number, because the mean of its divisors is an integer number (21007350).

Almost surely, 2^216075366 is an apocalyptic number.

216075366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

216075366 is an abundant number, since it is smaller than the sum of its proper divisors (288101034).

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

216075366 is a wasteful number, since it uses less digits than its factorization.

216075366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923420 (or 923417 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 216075366 is about 14699.5022364705. The cubic root of 216075366 is about 600.0697752187.

The spelling of 216075366 in words is "two hundred sixteen million, seventy-five thousand, three hundred sixty-six".