165350505 has 8 divisors (see below), whose sum is σ = 264560832. Its totient is φ = 88186928.

The previous prime is 165350503. The next prime is 165350531. The reversal of 165350505 is 505053561.

165350505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 165350505 - 2¹ = 165350503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165350501) 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, 5511669 + ... + 5511698.

It is an arithmetic number, because the mean of its divisors is an integer number (33070104).

Almost surely, 2^165350505 is an apocalyptic number.

165350505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165350505 is a deficient number, since it is larger than the sum of its proper divisors (99210327).

165350505 is a wasteful number, since it uses less digits than its factorization.

165350505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11023375.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 165350505 is about 12858.8687294023. The cubic root of 165350505 is about 548.8687547289.

The spelling of 165350505 in words is "one hundred sixty-five million, three hundred fifty thousand, five hundred five".