216683064 has 96 divisors (see below), whose sum is σ = 635980800. Its totient is φ = 66251520.

The previous prime is 216682993. The next prime is 216683081. The reversal of 216683064 is 460386612.

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

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 23 ways as a sum of consecutive naturals, for example, 168777 + ... + 170055.

It is an arithmetic number, because the mean of its divisors is an integer number (6624800).

Almost surely, 2^216683064 is an apocalyptic number.

216683064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216683064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317990400).

216683064 is an abundant number, since it is smaller than the sum of its proper divisors (419297736).

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

216683064 is a wasteful number, since it uses less digits than its factorization.

216683064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485 (or 1478 counting only the distinct ones).

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

The square root of 216683064 is about 14720.1584230605. The cubic root of 216683064 is about 600.6318011453.

The spelling of 216683064 in words is "two hundred sixteen million, six hundred eighty-three thousand, sixty-four".