216134525466 has 24 divisors (see below), whose sum is σ = 474887129184. Its totient is φ = 71030125320.

The previous prime is 216134525461. The next prime is 216134525473. The reversal of 216134525466 is 664525431612.

216134525466 is a `hidden beast` number, since 2 + 1 + 6 + 134 + 52 + 5 + 466 = 666.

It is not an unprimeable number, because it can be changed into a prime (216134525461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84558396 + ... + 84560951.

It is an arithmetic number, because the mean of its divisors is an integer number (19786963716).

Almost surely, 2^216134525466 is an apocalyptic number.

216134525466 is an abundant number, since it is smaller than the sum of its proper divisors (258752603718).

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

216134525466 is a wasteful number, since it uses less digits than its factorization.

216134525466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169119426 (or 169119423 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 216134525466 in words is "two hundred sixteen billion, one hundred thirty-four million, five hundred twenty-five thousand, four hundred sixty-six".