225607516665 has 16 divisors (see below), whose sum is σ = 361441449600. Its totient is φ = 120167534592.

The previous prime is 225607516627. The next prime is 225607516697. The reversal of 225607516665 is 566615706522.

It is not a de Polignac number, because 225607516665 - 2¹⁷ = 225607385593 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9767725 + ... + 9790794.

It is an arithmetic number, because the mean of its divisors is an integer number (22590090600).

Almost surely, 2^225607516665 is an apocalyptic number.

It is an amenable number.

225607516665 is a deficient number, since it is larger than the sum of its proper divisors (135833932935).

225607516665 is a wasteful number, since it uses less digits than its factorization.

225607516665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19559296.

The product of its (nonzero) digits is 4536000, while the sum is 51.

The spelling of 225607516665 in words is "two hundred twenty-five billion, six hundred seven million, five hundred sixteen thousand, six hundred sixty-five".