165265005 has 16 divisors (see below), whose sum is σ = 275921280. Its totient is φ = 84308928.

The previous prime is 165265003. The next prime is 165265013. The reversal of 165265005 is 500562561.

It is not a de Polignac number, because 165265005 - 2¹ = 165265003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165265003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239170 + ... + 239859.

It is an arithmetic number, because the mean of its divisors is an integer number (17245080).

Almost surely, 2^165265005 is an apocalyptic number.

165265005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165265005 is a deficient number, since it is larger than the sum of its proper divisors (110656275).

165265005 is a wasteful number, since it uses less digits than its factorization.

165265005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479060.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 165265005 is about 12855.5437457931. The cubic root of 165265005 is about 548.7741347791.

The spelling of 165265005 in words is "one hundred sixty-five million, two hundred sixty-five thousand, five".