165253206 has 32 divisors (see below), whose sum is σ = 353299968. Its totient is φ = 51402560.

The previous prime is 165253201. The next prime is 165253217. The reversal of 165253206 is 602352561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165253201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8946 + ... + 20261.

It is an arithmetic number, because the mean of its divisors is an integer number (11040624).

Almost surely, 2^165253206 is an apocalyptic number.

165253206 is an abundant number, since it is smaller than the sum of its proper divisors (188046762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165253206 is a wasteful number, since it uses less digits than its factorization.

165253206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29276.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 165253206 is about 12855.0848305252. The cubic root of 165253206 is about 548.7610746637.

The spelling of 165253206 in words is "one hundred sixty-five million, two hundred fifty-three thousand, two hundred six".