212345414565 has 16 divisors (see below), whose sum is σ = 347653889088. Its totient is φ = 110617145856.

The previous prime is 212345414551. The next prime is 212345414581. The reversal of 212345414565 is 565414543212.

212345414565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212345414565 - 2²² = 212341220261 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164608204 + ... + 164609493.

It is an arithmetic number, because the mean of its divisors is an integer number (21728368068).

Almost surely, 2^212345414565 is an apocalyptic number.

It is an amenable number.

212345414565 is a deficient number, since it is larger than the sum of its proper divisors (135308474523).

212345414565 is a wasteful number, since it uses less digits than its factorization.

212345414565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329217748.

The product of its digits is 576000, while the sum is 42.

Adding to 212345414565 its reverse (565414543212), we get a palindrome (777759957777).

The spelling of 212345414565 in words is "two hundred twelve billion, three hundred forty-five million, four hundred fourteen thousand, five hundred sixty-five".