225236311266 has 64 divisors (see below), whose sum is σ = 475256678400. Its totient is φ = 71053522176.

The previous prime is 225236311211. The next prime is 225236311283. The reversal of 225236311266 is 662113632522.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 10013080 + ... + 10035548.

It is an arithmetic number, because the mean of its divisors is an integer number (7425885600).

Almost surely, 2^225236311266 is an apocalyptic number.

225236311266 is an abundant number, since it is smaller than the sum of its proper divisors (250020367134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225236311266 is a wasteful number, since it uses less digits than its factorization.

225236311266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23643.

The product of its digits is 155520, while the sum is 39.

Adding to 225236311266 its reverse (662113632522), we get a palindrome (887349943788).

The spelling of 225236311266 in words is "two hundred twenty-five billion, two hundred thirty-six million, three hundred eleven thousand, two hundred sixty-six".