225666761147 has 4 divisors (see below), whose sum is σ = 225776150880. Its totient is φ = 225557371416.

The previous prime is 225666761093. The next prime is 225666761149. The reversal of 225666761147 is 741167666522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225666761147 - 2⁶ = 225666761083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225666761149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54691772 + ... + 54695897.

It is an arithmetic number, because the mean of its divisors is an integer number (56444037720).

Almost surely, 2^225666761147 is an apocalyptic number.

225666761147 is a deficient number, since it is larger than the sum of its proper divisors (109389733).

225666761147 is a wasteful number, since it uses less digits than its factorization.

225666761147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109389732.

The product of its digits is 5080320, while the sum is 53.

The spelling of 225666761147 in words is "two hundred twenty-five billion, six hundred sixty-six million, seven hundred sixty-one thousand, one hundred forty-seven".