163782216 has 256 divisors, whose sum is σ = 537062400. Its totient is φ = 45785088.

The previous prime is 163782211. The next prime is 163782217. The reversal of 163782216 is 612287361.

163782216 is a `hidden beast` number, since 1 + 637 + 8 + 2 + 2 + 16 = 666.

It is a super-2 number, since 2×163782216² = 53649228555741312, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (163782211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2243556 + ... + 2243628.

It is an arithmetic number, because the mean of its divisors is an integer number (2097900).

Almost surely, 2^163782216 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 163782216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268531200).

163782216 is an abundant number, since it is smaller than the sum of its proper divisors (373280184).

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

163782216 is a wasteful number, since it uses less digits than its factorization.

163782216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 155 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 163782216 is about 12797.7426134455. The cubic root of 163782216 is about 547.1279664336.

The spelling of 163782216 in words is "one hundred sixty-three million, seven hundred eighty-two thousand, two hundred sixteen".