216256682 has 24 divisors (see below), whose sum is σ = 342341760. Its totient is φ = 102349080.

The previous prime is 216256679. The next prime is 216256687. The reversal of 216256682 is 286652612.

216256682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216256687) 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, 136169 + ... + 137747.

It is an arithmetic number, because the mean of its divisors is an integer number (14264240).

Almost surely, 2^216256682 is an apocalyptic number.

216256682 is a deficient number, since it is larger than the sum of its proper divisors (126085078).

216256682 is a wasteful number, since it uses less digits than its factorization.

216256682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706 (or 1659 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 216256682 is about 14705.6683629137. The cubic root of 216256682 is about 600.2375744367.

The spelling of 216256682 in words is "two hundred sixteen million, two hundred fifty-six thousand, six hundred eighty-two".