134661104503165 has 4 divisors (see below), whose sum is σ = 161593325403804. Its totient is φ = 107728883602528.

The previous prime is 134661104503117. The next prime is 134661104503183. The reversal of 134661104503165 is 561305401166431.

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 19269272943684 + 115391831559481 = 4389678^2 + 10742059^2 .

It is a cyclic number.

It is not a de Polignac number, because 134661104503165 - 2³⁵ = 134626744764797 is a prime.

It is a super-2 number, since 2×134661104503165² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13466110450312 + ... + 13466110450321.

It is an arithmetic number, because the mean of its divisors is an integer number (40398331350951).

Almost surely, 2^{134661104503165} is an apocalyptic number.

It is an amenable number.

134661104503165 is a deficient number, since it is larger than the sum of its proper divisors (26932220900639).

134661104503165 is an equidigital number, since it uses as much as digits as its factorization.

134661104503165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26932220900638.

The product of its (nonzero) digits is 777600, while the sum is 46.

Adding to 134661104503165 its reverse (561305401166431), we get a palindrome (695966505669596).

The spelling of 134661104503165 in words is "one hundred thirty-four trillion, six hundred sixty-one billion, one hundred four million, five hundred three thousand, one hundred sixty-five".