216055512 has 40 divisors (see below), whose sum is σ = 605157300. Its totient is φ = 72018288.

The previous prime is 216055459. The next prime is 216055547. The reversal of 216055512 is 215550612.

216055512 is a `hidden beast` number, since 2 + 1 + 605 + 5 + 51 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 166062 + ... + 167357.

Almost surely, 2^216055512 is an apocalyptic number.

It is an amenable number.

216055512 is an abundant number, since it is smaller than the sum of its proper divisors (389101788).

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

216055512 is a wasteful number, since it uses less digits than its factorization.

216055512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333437 (or 333424 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 216055512 is about 14698.8268919666. The cubic root of 216055512 is about 600.0513955974.

The spelling of 216055512 in words is "two hundred sixteen million, fifty-five thousand, five hundred twelve".