216080466 has 32 divisors (see below), whose sum is σ = 494346240. Its totient is φ = 61681296.

The previous prime is 216080413. The next prime is 216080471. The reversal of 216080466 is 664080612.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73615 + ... + 76493.

It is an arithmetic number, because the mean of its divisors is an integer number (15448320).

Almost surely, 2^216080466 is an apocalyptic number.

216080466 is an abundant number, since it is smaller than the sum of its proper divisors (278265774).

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

216080466 is a wasteful number, since it uses less digits than its factorization.

216080466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4678.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 216080466 is about 14699.6757107087. The cubic root of 216080466 is about 600.0744963057.

The spelling of 216080466 in words is "two hundred sixteen million, eighty thousand, four hundred sixty-six".