165693069193 has 8 divisors (see below), whose sum is σ = 175499184168. Its totient is φ = 155893561344.

The previous prime is 165693069173. The next prime is 165693069221. The reversal of 165693069193 is 391960396561.

It can be written as a sum of positive squares in 4 ways, for example, as 117245977744 + 48447091449 = 342412^2 + 220107^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165693069193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165693069133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1600096 + ... + 1700497.

It is an arithmetic number, because the mean of its divisors is an integer number (21937398021).

Almost surely, 2^165693069193 is an apocalyptic number.

It is an amenable number.

165693069193 is a deficient number, since it is larger than the sum of its proper divisors (9806114975).

165693069193 is a wasteful number, since it uses less digits than its factorization.

165693069193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303563.

The product of its (nonzero) digits is 7085880, while the sum is 58.

The spelling of 165693069193 in words is "one hundred sixty-five billion, six hundred ninety-three million, sixty-nine thousand, one hundred ninety-three".