1176216166225 has 27 divisors (see below), whose sum is σ = 1507289810481. Its totient is φ = 910488823200.

The previous prime is 1176216166217. The next prime is 1176216166241. The reversal of 1176216166225 is 5226616126711.

The square root of 1176216166225 is 1084535.

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 121043455569 + 1055172710656 = 347913^2 + 1027216^2 .

It is not a de Polignac number, because 1176216166225 - 2³ = 1176216166217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 168099427 + ... + 168106423.

Almost surely, 2^{1176216166225} is an apocalyptic number.

1176216166225 is the 1084535-th square number.

1176216166225 is the 542268-th centered octagonal number.

It is an amenable number.

1176216166225 is a deficient number, since it is larger than the sum of its proper divisors (331073644256).

1176216166225 is an frugal number, since it uses more digits than its factorization.

1176216166225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14066 (or 7033 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The spelling of 1176216166225 in words is "one trillion, one hundred seventy-six billion, two hundred sixteen million, one hundred sixty-six thousand, two hundred twenty-five".