165171070 has 16 divisors (see below), whose sum is σ = 298867968. Its totient is φ = 65721760.

The previous prime is 165171053. The next prime is 165171089. The reversal of 165171070 is 70171561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41329 + ... + 45148.

It is an arithmetic number, because the mean of its divisors is an integer number (18679248).

Almost surely, 2^165171070 is an apocalyptic number.

165171070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165171070 is a deficient number, since it is larger than the sum of its proper divisors (133696898).

165171070 is a wasteful number, since it uses less digits than its factorization.

165171070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86675.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 165171070 is about 12851.8897443139. The cubic root of 165171070 is about 548.6701424707.

The spelling of 165171070 in words is "one hundred sixty-five million, one hundred seventy-one thousand, seventy".