135834166724161 has 4 divisors (see below), whose sum is σ = 135946148725972. Its totient is φ = 135722184722352.

The previous prime is 135834166724147. The next prime is 135834166724177. The reversal of 135834166724161 is 161427661438531.

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 76689515135025 + 59144651589136 = 8757255^2 + 7690556^2 .

It is a cyclic number.

It is not a de Polignac number, because 135834166724161 - 2¹¹ = 135834166722113 is a prime.

It is a super-2 number, since 2×135834166724161² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135834166724096 and 135834166724105.

It is not an unprimeable number, because it can be changed into a prime (135834166784161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55990999086 + ... + 55991001511.

It is an arithmetic number, because the mean of its divisors is an integer number (33986537181493).

Almost surely, 2^{135834166724161} is an apocalyptic number.

It is an amenable number.

135834166724161 is a deficient number, since it is larger than the sum of its proper divisors (111982001811).

135834166724161 is a wasteful number, since it uses less digits than its factorization.

135834166724161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111982001810.

The product of its digits is 17418240, while the sum is 58.

The spelling of 135834166724161 in words is "one hundred thirty-five trillion, eight hundred thirty-four billion, one hundred sixty-six million, seven hundred twenty-four thousand, one hundred sixty-one".