134231660165 has 4 divisors (see below), whose sum is σ = 161077992204. Its totient is φ = 107385328128.

The previous prime is 134231660141. The next prime is 134231660203. The reversal of 134231660165 is 561066132431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15773852836 + 118457807329 = 125594^2 + 344177^2 .

It is a cyclic number.

It is not a de Polignac number, because 134231660165 - 2⁸ = 134231659909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 13423166012 + ... + 13423166021.

It is an arithmetic number, because the mean of its divisors is an integer number (40269498051).

Almost surely, 2^134231660165 is an apocalyptic number.

It is an amenable number.

134231660165 is a deficient number, since it is larger than the sum of its proper divisors (26846332039).

134231660165 is an equidigital number, since it uses as much as digits as its factorization.

134231660165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26846332038.

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 134231660165 its reverse (561066132431), we get a palindrome (695297792596).

The spelling of 134231660165 in words is "one hundred thirty-four billion, two hundred thirty-one million, six hundred sixty thousand, one hundred sixty-five".