165058805 has 4 divisors (see below), whose sum is σ = 198070572. Its totient is φ = 132047040.

The previous prime is 165058771. The next prime is 165058819. The reversal of 165058805 is 508850561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 128890609 + 36168196 = 11353^2 + 6014^2 .

It is not a de Polignac number, because 165058805 - 2⁸ = 165058549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16505876 + ... + 16505885.

It is an arithmetic number, because the mean of its divisors is an integer number (49517643).

Almost surely, 2^165058805 is an apocalyptic number.

It is an amenable number.

165058805 is a deficient number, since it is larger than the sum of its proper divisors (33011767).

165058805 is an equidigital number, since it uses as much as digits as its factorization.

165058805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33011766.

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 165058805 is about 12847.5213562772. The cubic root of 165058805 is about 548.5458058979.

The spelling of 165058805 in words is "one hundred sixty-five million, fifty-eight thousand, eight hundred five".