195566053127 has 2 divisors, whose sum is σ = 195566053128. Its totient is φ = 195566053126.

The previous prime is 195566053073. The next prime is 195566053139. The reversal of 195566053127 is 721350665591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195566053127 - 2¹⁰ = 195566052103 is a prime.

It is a super-2 number, since 2×195566053127² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195566053927) 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 as a sum of consecutive naturals, namely, 97783026563 + 97783026564.

It is an arithmetic number, because the mean of its divisors is an integer number (97783026564).

Almost surely, 2^195566053127 is an apocalyptic number.

195566053127 is a deficient number, since it is larger than the sum of its proper divisors (1).

195566053127 is an equidigital number, since it uses as much as digits as its factorization.

195566053127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 195566053127 in words is "one hundred ninety-five billion, five hundred sixty-six million, fifty-three thousand, one hundred twenty-seven".