225456819111 has 24 divisors (see below), whose sum is σ = 327729991680. Its totient is φ = 149349757776.

The previous prime is 225456819109. The next prime is 225456819139. The reversal of 225456819111 is 111918654522.

225456819111 is a `hidden beast` number, since 2 + 2 + 5 + 456 + 8 + 191 + 1 + 1 = 666.

It is not a de Polignac number, because 225456819111 - 2¹ = 225456819109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225456819311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4301086 + ... + 4353188.

It is an arithmetic number, because the mean of its divisors is an integer number (13655416320).

Almost surely, 2^225456819111 is an apocalyptic number.

225456819111 is a deficient number, since it is larger than the sum of its proper divisors (102273172569).

225456819111 is a wasteful number, since it uses less digits than its factorization.

225456819111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55155 (or 55152 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The spelling of 225456819111 in words is "two hundred twenty-five billion, four hundred fifty-six million, eight hundred nineteen thousand, one hundred eleven".