216776676 has 96 divisors (see below), whose sum is σ = 545965056. Its totient is φ = 66816000.

The previous prime is 216776669. The next prime is 216776699. The reversal of 216776676 is 676677612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930256 + ... + 930488.

It is an arithmetic number, because the mean of its divisors is an integer number (5687136).

Almost surely, 2^216776676 is an apocalyptic number.

It is an amenable number.

216776676 is an abundant number, since it is smaller than the sum of its proper divisors (329188380).

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

216776676 is a wasteful number, since it uses less digits than its factorization.

216776676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 371 counting only the distinct ones).

The product of its digits is 889056, while the sum is 48.

The square root of 216776676 is about 14723.3378009200. The cubic root of 216776676 is about 600.7182842143.

The spelling of 216776676 in words is "two hundred sixteen million, seven hundred seventy-six thousand, six hundred seventy-six".