165042270 has 24 divisors (see below), whose sum is σ = 429110136. Its totient is φ = 44011248.

The previous prime is 165042253. The next prime is 165042313. The reversal of 165042270 is 72240561.

165042270 is a `hidden beast` number, since 1 + 650 + 4 + 2 + 2 + 7 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916812 + ... + 916991.

It is an arithmetic number, because the mean of its divisors is an integer number (17879589).

Almost surely, 2^165042270 is an apocalyptic number.

165042270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165042270 is an abundant number, since it is smaller than the sum of its proper divisors (264067866).

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

165042270 is a wasteful number, since it uses less digits than its factorization.

165042270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833816 (or 1833813 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 165042270 is about 12846.8778308194. The cubic root of 165042270 is about 548.5274881681.

The spelling of 165042270 in words is "one hundred sixty-five million, forty-two thousand, two hundred seventy".