164562216 has 128 divisors (see below), whose sum is σ = 510720000. Its totient is φ = 43027200.

The previous prime is 164562187. The next prime is 164562253. The reversal of 164562216 is 612265461.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329535 + ... + 330033.

It is an arithmetic number, because the mean of its divisors is an integer number (3990000).

Almost surely, 2^164562216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164562216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255360000).

164562216 is an abundant number, since it is smaller than the sum of its proper divisors (346157784).

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

164562216 is a wasteful number, since it uses less digits than its factorization.

164562216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 675 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 164562216 is about 12828.1805412927. The cubic root of 164562216 is about 547.9951426568.

The spelling of 164562216 in words is "one hundred sixty-four million, five hundred sixty-two thousand, two hundred sixteen".