216263676 has 12 divisors (see below), whose sum is σ = 504615272. Its totient is φ = 72087888.

The previous prime is 216263669. The next prime is 216263689. The reversal of 216263676 is 676362612.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 9010975 + ... + 9010998.

Almost surely, 2^216263676 is an apocalyptic number.

It is an amenable number.

216263676 is an abundant number, since it is smaller than the sum of its proper divisors (288351596).

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

216263676 is a wasteful number, since it uses less digits than its factorization.

216263676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18021980 (or 18021978 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 216263676 is about 14705.9061604513. The cubic root of 216263676 is about 600.2440451676.

The spelling of 216263676 in words is "two hundred sixteen million, two hundred sixty-three thousand, six hundred seventy-six".