225065656154165 has 4 divisors (see below), whose sum is σ = 270078787385004. Its totient is φ = 180052524923328.

The previous prime is 225065656154057. The next prime is 225065656154231. The reversal of 225065656154165 is 561451656560522.

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 98394615392836 + 126671040761329 = 9919406^2 + 11254823^2 .

It is a cyclic number.

It is not a de Polignac number, because 225065656154165 - 2⁸ = 225065656153909 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 3 ways as a sum of consecutive naturals, for example, 22506565615412 + ... + 22506565615421.

It is an arithmetic number, because the mean of its divisors is an integer number (67519696846251).

Almost surely, 2^{225065656154165} is an apocalyptic number.

It is an amenable number.

225065656154165 is a deficient number, since it is larger than the sum of its proper divisors (45013131230839).

225065656154165 is an equidigital number, since it uses as much as digits as its factorization.

225065656154165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45013131230838.

The product of its (nonzero) digits is 64800000, while the sum is 59.

The spelling of 225065656154165 in words is "two hundred twenty-five trillion, sixty-five billion, six hundred fifty-six million, one hundred fifty-four thousand, one hundred sixty-five".