225111766565 has 24 divisors (see below), whose sum is σ = 316712005632. Its totient is φ = 153146881440.

The previous prime is 225111766549. The next prime is 225111766577. The reversal of 225111766565 is 565667111522.

It is not a de Polignac number, because 225111766565 - 2⁴ = 225111766549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3586301 + ... + 3648530.

It is an arithmetic number, because the mean of its divisors is an integer number (13196333568).

Almost surely, 2^225111766565 is an apocalyptic number.

It is an amenable number.

225111766565 is a deficient number, since it is larger than the sum of its proper divisors (91600239067).

225111766565 is a wasteful number, since it uses less digits than its factorization.

225111766565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7234977 (or 7234970 counting only the distinct ones).

The product of its digits is 756000, while the sum is 47.

The spelling of 225111766565 in words is "two hundred twenty-five billion, one hundred eleven million, seven hundred sixty-six thousand, five hundred sixty-five".