12216415585 has 8 divisors (see below), whose sum is σ = 15992398656. Its totient is φ = 8884665840.

The previous prime is 12216415583. The next prime is 12216415609. The reversal of 12216415585 is 58551461221.

12216415585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12216415585 - 2¹ = 12216415583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12216415583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111058269 + ... + 111058378.

It is an arithmetic number, because the mean of its divisors is an integer number (1999049832).

Almost surely, 2^12216415585 is an apocalyptic number.

It is an amenable number.

12216415585 is a deficient number, since it is larger than the sum of its proper divisors (3775983071).

12216415585 is a wasteful number, since it uses less digits than its factorization.

12216415585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222116663.

The product of its digits is 96000, while the sum is 40.

The spelling of 12216415585 in words is "twelve billion, two hundred sixteen million, four hundred fifteen thousand, five hundred eighty-five".