216087466 has 32 divisors (see below), whose sum is σ = 386684928. Its totient is φ = 88632960.

The previous prime is 216087457. The next prime is 216087467. The reversal of 216087466 is 664780612.

It is not an unprimeable number, because it can be changed into a prime (216087467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26871 + ... + 33973.

It is an arithmetic number, because the mean of its divisors is an integer number (12083904).

Almost surely, 2^216087466 is an apocalyptic number.

216087466 is a deficient number, since it is larger than the sum of its proper divisors (170597462).

216087466 is a wasteful number, since it uses less digits than its factorization.

216087466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7206.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 216087466 is about 14699.9138092711. The cubic root of 216087466 is about 600.0809761080.

The spelling of 216087466 in words is "two hundred sixteen million, eighty-seven thousand, four hundred sixty-six".