216056415 has 16 divisors (see below), whose sum is σ = 353046528. Its totient is φ = 112778016.

The previous prime is 216056333. The next prime is 216056437. The reversal of 216056415 is 514650612.

216056415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216056415 - 2⁷ = 216056287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152527 + ... + 153936.

It is an arithmetic number, because the mean of its divisors is an integer number (22065408).

Almost surely, 2^216056415 is an apocalyptic number.

216056415 is a deficient number, since it is larger than the sum of its proper divisors (136990113).

216056415 is a wasteful number, since it uses less digits than its factorization.

216056415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306518.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 216056415 is about 14698.8576086715. The cubic root of 216056415 is about 600.0522315641.

The spelling of 216056415 in words is "two hundred sixteen million, fifty-six thousand, four hundred fifteen".