220516 has 12 divisors (see below), whose sum is σ = 399420. Its totient is φ = 106400.

The previous prime is 220513. The next prime is 220529. The reversal of 220516 is 615022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60516 + 160000 = 246^2 + 400^2 .

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 220516.

It is not an unprimeable number, because it can be changed into a prime (220511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835 + ... + 1066.

It is an arithmetic number, because the mean of its divisors is an integer number (33285).

2²²⁰⁵¹⁶ is an apocalyptic number.

It is an amenable number.

220516 is a deficient number, since it is larger than the sum of its proper divisors (178904).

220516 is a wasteful number, since it uses less digits than its factorization.

220516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1932 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 220516 is about 469.5913116743. The cubic root of 220516 is about 60.4152674005.

Adding to 220516 its reverse (615022), we get a palindrome (835538).

The spelling of 220516 in words is "two hundred twenty thousand, five hundred sixteen".