7168162225 has 81 divisors (see below), whose sum is σ = 10780719681. Its totient is φ = 4714147200.

The previous prime is 7168162213. The next prime is 7168162229. The reversal of 7168162225 is 5222618617.

The square root of 7168162225 is 84665.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3017195041 + 4150967184 = 54929^2 + 64428^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7168162225 is a prime.

It is a Duffinian number.

Its product of digits (80640) is a multiple of the sum of its prime divisors (112).

It is not an unprimeable number, because it can be changed into a prime (7168162229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 121494246 + ... + 121494304.

Almost surely, 2^7168162225 is an apocalyptic number.

7168162225 is the 84665-th square number.

7168162225 is the 42333-rd centered octagonal number.

It is an amenable number.

7168162225 is a deficient number, since it is larger than the sum of its proper divisors (3612557456).

7168162225 is an equidigital number, since it uses as much as digits as its factorization.

7168162225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 112 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The cubic root of 7168162225 is about 1928.1283568156.

The spelling of 7168162225 in words is "seven billion, one hundred sixty-eight million, one hundred sixty-two thousand, two hundred twenty-five".