220523316 has 48 divisors (see below), whose sum is σ = 556605504. Its totient is φ = 67550976.

The previous prime is 220523311. The next prime is 220523353. The reversal of 220523316 is 613325022.

220523316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220523311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33315 + ... + 39381.

It is an arithmetic number, because the mean of its divisors is an integer number (11595948).

Almost surely, 2^220523316 is an apocalyptic number.

220523316 is a gapful number since it is divisible by the number (26) 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 220523316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278302752).

220523316 is an abundant number, since it is smaller than the sum of its proper divisors (336082188).

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

220523316 is a wasteful number, since it uses less digits than its factorization.

220523316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6320 (or 6318 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 220523316 is about 14850.0274747221. The cubic root of 220523316 is about 604.1593552018.

Adding to 220523316 its reverse (613325022), we get a palindrome (833848338).

The spelling of 220523316 in words is "two hundred twenty million, five hundred twenty-three thousand, three hundred sixteen".