165050305 has 8 divisors (see below), whose sum is σ = 226354752. Its totient is φ = 113177328.

The previous prime is 165050287. The next prime is 165050309. The reversal of 165050305 is 503050561.

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 165050305 - 2⁷ = 165050177 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165050305.

It is not an unprimeable number, because it can be changed into a prime (165050309) 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, 2357827 + ... + 2357896.

It is an arithmetic number, because the mean of its divisors is an integer number (28294344).

Almost surely, 2^165050305 is an apocalyptic number.

It is an amenable number.

165050305 is a deficient number, since it is larger than the sum of its proper divisors (61304447).

165050305 is an equidigital number, since it uses as much as digits as its factorization.

165050305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715735.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 165050305 is about 12847.1905489099. The cubic root of 165050305 is about 548.5363896187.

The spelling of 165050305 in words is "one hundred sixty-five million, fifty thousand, three hundred five".