225665364137 has 8 divisors (see below), whose sum is σ = 227455097856. Its totient is φ = 223875831312.

The previous prime is 225665364131. The next prime is 225665364157. The reversal of 225665364137 is 731463566522.

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

It is a cyclic number.

It is not a de Polignac number, because 225665364137 - 2⁶ = 225665364073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225665364131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2878898 + ... + 2956244.

It is an arithmetic number, because the mean of its divisors is an integer number (28431887232).

Almost surely, 2^225665364137 is an apocalyptic number.

It is an amenable number.

225665364137 is a deficient number, since it is larger than the sum of its proper divisors (1789733719).

225665364137 is a wasteful number, since it uses less digits than its factorization.

225665364137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100447.

The product of its digits is 5443200, while the sum is 50.

The spelling of 225665364137 in words is "two hundred twenty-five billion, six hundred sixty-five million, three hundred sixty-four thousand, one hundred thirty-seven".