216460485 has 16 divisors (see below), whose sum is σ = 384818880. Its totient is φ = 115445520.

The previous prime is 216460477. The next prime is 216460487. The reversal of 216460485 is 584064612.

216460485 is a `hidden beast` number, since 2 + 1 + 646 + 0 + 4 + 8 + 5 = 666.

It is not a de Polignac number, because 216460485 - 2³ = 216460477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216460487) 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, 801571 + ... + 801840.

It is an arithmetic number, because the mean of its divisors is an integer number (24051180).

Almost surely, 2^216460485 is an apocalyptic number.

It is an amenable number.

216460485 is a deficient number, since it is larger than the sum of its proper divisors (168358395).

216460485 is a wasteful number, since it uses less digits than its factorization.

216460485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603425 (or 1603419 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 216460485 is about 14712.5961339255. The cubic root of 216460485 is about 600.4260723656.

The spelling of 216460485 in words is "two hundred sixteen million, four hundred sixty thousand, four hundred eighty-five".