194106330625 has 15 divisors (see below), whose sum is σ = 242569035093. Its totient is φ = 155276253000.

The previous prime is 194106330577. The next prime is 194106330643. The reversal of 194106330625 is 526033601491.

The square root of 194106330625 is 440575.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15217936321 + 178888394304 = 123361^2 + 422952^2 .

It is not a de Polignac number, because 194106330625 - 2⁹ = 194106330113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 11005564 + ... + 11023186.

Almost surely, 2^194106330625 is an apocalyptic number.

194106330625 is the 440575-th square number.

194106330625 is the 220288-th centered octagonal number.

It is an amenable number.

194106330625 is a deficient number, since it is larger than the sum of its proper divisors (48462704468).

194106330625 is an frugal number, since it uses more digits than its factorization.

194106330625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35266 (or 17628 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 194106330625 in words is "one hundred ninety-four billion, one hundred six million, three hundred thirty thousand, six hundred twenty-five".