19395080897165 has 16 divisors (see below), whose sum is σ = 23365406519280. Its totient is φ = 15455195627520.

The previous prime is 19395080897161. The next prime is 19395080897167. The reversal of 19395080897165 is 56179808059391.

It can be written as a sum of positive squares in 8 ways, for example, as 2141009841961 + 17254071055204 = 1463219^2 + 4153802^2 .

It is not a de Polignac number, because 19395080897165 - 2² = 19395080897161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19395080897161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42859685 + ... + 43309845.

It is an arithmetic number, because the mean of its divisors is an integer number (1460337907455).

Almost surely, 2^{19395080897165} is an apocalyptic number.

It is an amenable number.

19395080897165 is a deficient number, since it is larger than the sum of its proper divisors (3970325622115).

19395080897165 is a wasteful number, since it uses less digits than its factorization.

19395080897165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483952.

The product of its (nonzero) digits is 146966400, while the sum is 71.

The spelling of 19395080897165 in words is "nineteen trillion, three hundred ninety-five billion, eighty million, eight hundred ninety-seven thousand, one hundred sixty-five".