220330865 has 16 divisors (see below), whose sum is σ = 267442560. Its totient is φ = 174245760.

The previous prime is 220330837. The next prime is 220330871. The reversal of 220330865 is 568033022.

It is not a de Polignac number, because 220330865 - 2²⁰ = 219282289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234677 + ... + 235613.

It is an arithmetic number, because the mean of its divisors is an integer number (16715160).

Almost surely, 2^220330865 is an apocalyptic number.

It is an amenable number.

220330865 is a deficient number, since it is larger than the sum of its proper divisors (47111695).

220330865 is a wasteful number, since it uses less digits than its factorization.

220330865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 220330865 is about 14843.5462407068. The cubic root of 220330865 is about 603.9835538188.

Adding to 220330865 its reverse (568033022), we get a palindrome (788363887).

The spelling of 220330865 in words is "two hundred twenty million, three hundred thirty thousand, eight hundred sixty-five".