225151215163 has 4 divisors (see below), whose sum is σ = 257315674480. Its totient is φ = 192986755848.

The previous prime is 225151215143. The next prime is 225151215181. The reversal of 225151215163 is 361512151522.

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 225151215163 - 2⁵ = 225151215131 is a prime.

It is a super-2 number, since 2×225151215163² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225151215143) 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, 16082229648 + ... + 16082229661.

It is an arithmetic number, because the mean of its divisors is an integer number (64328918620).

Almost surely, 2^225151215163 is an apocalyptic number.

225151215163 is a deficient number, since it is larger than the sum of its proper divisors (32164459317).

225151215163 is an equidigital number, since it uses as much as digits as its factorization.

225151215163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32164459316.

The product of its digits is 18000, while the sum is 34.

Adding to 225151215163 its reverse (361512151522), we get a palindrome (586663366685).

The spelling of 225151215163 in words is "two hundred twenty-five billion, one hundred fifty-one million, two hundred fifteen thousand, one hundred sixty-three".