8195366190025 has 81 divisors (see below), whose sum is σ = 11904795474663. Its totient is φ = 5580311066400.

The previous prime is 8195366190019. The next prime is 8195366190047. The reversal of 8195366190025 is 5200916635918.

The square root of 8195366190025 is 2862755.

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

It can be written as a sum of positive squares in only one way, i.e., 2950331828409 + 5245034361616 = 1717653^2 + 2290204^2 .

It is not a de Polignac number, because 8195366190025 - 2¹⁵ = 8195366157257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 26351659620 + ... + 26351659930.

Almost surely, 2^{8195366190025} is an apocalyptic number.

8195366190025 is the 2862755-th square number.

8195366190025 is the 1431378-th centered octagonal number.

It is an amenable number.

8195366190025 is a deficient number, since it is larger than the sum of its proper divisors (3709429284638).

8195366190025 is an frugal number, since it uses more digits than its factorization.

8195366190025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 8195366190025 in words is "eight trillion, one hundred ninety-five billion, three hundred sixty-six million, one hundred ninety thousand, twenty-five".