166464216 has 48 divisors (see below), whose sum is σ = 451488960. Its totient is φ = 55408320.

The previous prime is 166464209. The next prime is 166464281. The reversal of 166464216 is 612464661.

166464216 is a `hidden beast` number, since 1 + 6 + 6 + 4 + 642 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70186 + ... + 72518.

It is an arithmetic number, because the mean of its divisors is an integer number (9406020).

Almost surely, 2^166464216 is an apocalyptic number.

It is an amenable number.

166464216 is an abundant number, since it is smaller than the sum of its proper divisors (285024744).

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

166464216 is a wasteful number, since it uses less digits than its factorization.

166464216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336 (or 3329 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 166464216 is about 12902.1012242193. The cubic root of 166464216 is about 550.0982920748.

The spelling of 166464216 in words is "one hundred sixty-six million, four hundred sixty-four thousand, two hundred sixteen".