216066056 has 32 divisors (see below), whose sum is σ = 438942240. Its totient is φ = 99310848.

The previous prime is 216066031. The next prime is 216066061. The reversal of 216066056 is 650660612.

216066056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 12626 + ... + 24321.

It is an arithmetic number, because the mean of its divisors is an integer number (13716945).

Almost surely, 2^216066056 is an apocalyptic number.

It is an amenable number.

216066056 is an abundant number, since it is smaller than the sum of its proper divisors (222876184).

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

216066056 is a wasteful number, since it uses less digits than its factorization.

216066056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37013 (or 37009 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 216066056 is about 14699.1855556694. The cubic root of 216066056 is about 600.0611567292.

The spelling of 216066056 in words is "two hundred sixteen million, sixty-six thousand, fifty-six".