162720165 has 8 divisors (see below), whose sum is σ = 260352288. Its totient is φ = 86784080.

The previous prime is 162720163. The next prime is 162720197. The reversal of 162720165 is 561027261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 162720165 - 2¹ = 162720163 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162720163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5423991 + ... + 5424020.

It is an arithmetic number, because the mean of its divisors is an integer number (32544036).

Almost surely, 2^162720165 is an apocalyptic number.

162720165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162720165 is a deficient number, since it is larger than the sum of its proper divisors (97632123).

162720165 is a wasteful number, since it uses less digits than its factorization.

162720165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10848019.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 162720165 is about 12756.1814427359. The cubic root of 162720165 is about 545.9427780202.

The spelling of 162720165 in words is "one hundred sixty-two million, seven hundred twenty thousand, one hundred sixty-five".