220416865 has 16 divisors (see below), whose sum is σ = 266996736. Its totient is φ = 174678400.

The previous prime is 220416863. The next prime is 220416869. The reversal of 220416865 is 568614022.

It is not a de Polignac number, because 220416865 - 2¹ = 220416863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220416865.

It is not an unprimeable number, because it can be changed into a prime (220416863) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 422805 + ... + 423325.

It is an arithmetic number, because the mean of its divisors is an integer number (16687296).

Almost surely, 2^220416865 is an apocalyptic number.

It is an amenable number.

220416865 is a deficient number, since it is larger than the sum of its proper divisors (46579871).

220416865 is a wasteful number, since it uses less digits than its factorization.

220416865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 220416865 is about 14846.4428399533. The cubic root of 220416865 is about 604.0621263011.

The spelling of 220416865 in words is "two hundred twenty million, four hundred sixteen thousand, eight hundred sixty-five".