225116056145 has 32 divisors (see below), whose sum is σ = 283848413184. Its totient is φ = 171065664000.

The previous prime is 225116056141. The next prime is 225116056147. The reversal of 225116056145 is 541650611522.

It is not a de Polignac number, because 225116056145 - 2² = 225116056141 is a prime.

It is a super-2 number, since 2×225116056145² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225116056099 and 225116056108.

It is not an unprimeable number, because it can be changed into a prime (225116056141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13192439 + ... + 13209491.

It is an arithmetic number, because the mean of its divisors is an integer number (8870262912).

Almost surely, 2^225116056145 is an apocalyptic number.

It is an amenable number.

225116056145 is a deficient number, since it is larger than the sum of its proper divisors (58732357039).

225116056145 is a wasteful number, since it uses less digits than its factorization.

225116056145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17873.

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 225116056145 its reverse (541650611522), we get a palindrome (766766667667).

The spelling of 225116056145 in words is "two hundred twenty-five billion, one hundred sixteen million, fifty-six thousand, one hundred forty-five".