225664540070017 has 4 divisors (see below), whose sum is σ = 238938924780036. Its totient is φ = 212390155360000.

The previous prime is 225664540070003. The next prime is 225664540070027. The reversal of 225664540070017 is 710070045466522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 137075765380096 + 88588774689921 = 11707936^2 + 9412161^2 .

It is a cyclic number.

It is not a de Polignac number, because 225664540070017 - 2³¹ = 225662392586369 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225664540070027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6637192354984 + ... + 6637192355017.

It is an arithmetic number, because the mean of its divisors is an integer number (59734731195009).

Almost surely, 2^{225664540070017} is an apocalyptic number.

It is an amenable number.

225664540070017 is a deficient number, since it is larger than the sum of its proper divisors (13274384710019).

225664540070017 is a wasteful number, since it uses less digits than its factorization.

225664540070017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13274384710018.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 225664540070017 in words is "two hundred twenty-five trillion, six hundred sixty-four billion, five hundred forty million, seventy thousand, seventeen".