220115516 has 24 divisors (see below), whose sum is σ = 396408096. Its totient is φ = 106868160.

The previous prime is 220115503. The next prime is 220115521. The reversal of 220115516 is 615511022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220115491 and 220115500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92210 + ... + 94566.

It is an arithmetic number, because the mean of its divisors is an integer number (16517004).

Almost surely, 2^220115516 is an apocalyptic number.

It is an amenable number.

220115516 is a deficient number, since it is larger than the sum of its proper divisors (176292580).

220115516 is a wasteful number, since it uses less digits than its factorization.

220115516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 220115516 is about 14836.2905067271. The cubic root of 220115516 is about 603.7867140149.

Adding to 220115516 its reverse (615511022), we get a palindrome (835626538).

The spelling of 220115516 in words is "two hundred twenty million, one hundred fifteen thousand, five hundred sixteen".