133673733637165 has 8 divisors (see below), whose sum is σ = 160421963539320. Its totient is φ = 106929998126592.

The previous prime is 133673733637163. The next prime is 133673733637177. The reversal of 133673733637165 is 561736337376331.

It can be written as a sum of positive squares in 4 ways, for example, as 94405688955081 + 39268044682084 = 9716259^2 + 6266422^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133673733637165 - 2¹ = 133673733637163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133673733637097 and 133673733637106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133673733637163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123532460 + ... + 1123651429.

It is an arithmetic number, because the mean of its divisors is an integer number (20052745442415).

Almost surely, 2^{133673733637165} is an apocalyptic number.

It is an amenable number.

133673733637165 is a deficient number, since it is larger than the sum of its proper divisors (26748229902155).

133673733637165 is a wasteful number, since it uses less digits than its factorization.

133673733637165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247195791.

The product of its digits is 270050760, while the sum is 64.

The spelling of 133673733637165 in words is "one hundred thirty-three trillion, six hundred seventy-three billion, seven hundred thirty-three million, six hundred thirty-seven thousand, one hundred sixty-five".