165066435346 has 4 divisors (see below), whose sum is σ = 247599653022. Its totient is φ = 82533217672.

The previous prime is 165066435311. The next prime is 165066435377. The reversal of 165066435346 is 643534660561.

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

It can be written as a sum of positive squares in only one way, i.e., 164207300625 + 859134721 = 405225^2 + 29311^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 165066435346.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41266608835 + ... + 41266608838.

Almost surely, 2^165066435346 is an apocalyptic number.

165066435346 is a deficient number, since it is larger than the sum of its proper divisors (82533217676).

165066435346 is an equidigital number, since it uses as much as digits as its factorization.

165066435346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82533217675.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 165066435346 in words is "one hundred sixty-five billion, sixty-six million, four hundred thirty-five thousand, three hundred forty-six".