216005463 has 12 divisors (see below), whose sum is σ = 312174720. Its totient is φ = 143926656.

The previous prime is 216005459. The next prime is 216005477. The reversal of 216005463 is 364500612.

216005463 is a `hidden beast` number, since 2 + 1 + 600 + 54 + 6 + 3 = 666.

It is not a de Polignac number, because 216005463 - 2² = 216005459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216005483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15178 + ... + 25736.

It is an arithmetic number, because the mean of its divisors is an integer number (26014560).

Almost surely, 2^216005463 is an apocalyptic number.

216005463 is a deficient number, since it is larger than the sum of its proper divisors (96169257).

216005463 is a wasteful number, since it uses less digits than its factorization.

216005463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838 (or 12835 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 216005463 is about 14697.1243105582. The cubic root of 216005463 is about 600.0050582907.

The spelling of 216005463 in words is "two hundred sixteen million, five thousand, four hundred sixty-three".