216506076 has 36 divisors (see below), whose sum is σ = 517851096. Its totient is φ = 70401920.

The previous prime is 216506063. The next prime is 216506093. The reversal of 216506076 is 670605612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14806 + ... + 25538.

Almost surely, 2^216506076 is an apocalyptic number.

It is an amenable number.

216506076 is an abundant number, since it is smaller than the sum of its proper divisors (301345020).

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

216506076 is a wasteful number, since it uses less digits than its factorization.

216506076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822 (or 10779 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 216506076 is about 14714.1454389985. The cubic root of 216506076 is about 600.4682234052.

The spelling of 216506076 in words is "two hundred sixteen million, five hundred six thousand, seventy-six".