216306676 has 24 divisors (see below), whose sum is σ = 382646880. Its totient is φ = 106984800.

The previous prime is 216306667. The next prime is 216306689. The reversal of 216306676 is 676603612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266311 + ... + 267121.

It is an arithmetic number, because the mean of its divisors is an integer number (15943620).

Almost surely, 2^216306676 is an apocalyptic number.

It is an amenable number.

216306676 is a deficient number, since it is larger than the sum of its proper divisors (166340204).

216306676 is a wasteful number, since it uses less digits than its factorization.

216306676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455 (or 1453 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 216306676 is about 14707.3680854190. The cubic root of 216306676 is about 600.2838249771.

The spelling of 216306676 in words is "two hundred sixteen million, three hundred six thousand, six hundred seventy-six".