165206353 has 16 divisors (see below), whose sum is σ = 182056896. Its totient is φ = 148973760.

The previous prime is 165206341. The next prime is 165206381. The reversal of 165206353 is 353602561.

165206353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165206353 - 2²⁵ = 131651921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165206303) 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, 238738 + ... + 239428.

It is an arithmetic number, because the mean of its divisors is an integer number (11378556).

Almost surely, 2^165206353 is an apocalyptic number.

165206353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

165206353 is a deficient number, since it is larger than the sum of its proper divisors (16850543).

165206353 is a wasteful number, since it uses less digits than its factorization.

165206353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 165206353 is about 12853.2623485246. The cubic root of 165206353 is about 548.7092077266.

The spelling of 165206353 in words is "one hundred sixty-five million, two hundred six thousand, three hundred fifty-three".