225743161617 has 12 divisors (see below), whose sum is σ = 326086600320. Its totient is φ = 150489374328.

The previous prime is 225743161561. The next prime is 225743161639. The reversal of 225743161617 is 716161347522.

225743161617 is a `hidden beast` number, since 2 + 2 + 57 + 431 + 6 + 161 + 7 = 666.

It is not a de Polignac number, because 225743161617 - 2²² = 225738967313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225743161417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263817 + ... + 721862.

It is an arithmetic number, because the mean of its divisors is an integer number (27173883360).

Almost surely, 2^225743161617 is an apocalyptic number.

It is an amenable number.

225743161617 is a deficient number, since it is larger than the sum of its proper divisors (100343438703).

225743161617 is a wasteful number, since it uses less digits than its factorization.

225743161617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011132 (or 1011129 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The spelling of 225743161617 in words is "two hundred twenty-five billion, seven hundred forty-three million, one hundred sixty-one thousand, six hundred seventeen".