162880165 has 24 divisors (see below), whose sum is σ = 228243960. Its totient is φ = 111259008.

The previous prime is 162880163. The next prime is 162880171. The reversal of 162880165 is 561088261.

It can be written as a sum of positive squares in 4 ways, for example, as 15038884 + 147841281 = 3878^2 + 12159^2 .

It is not a de Polignac number, because 162880165 - 2¹ = 162880163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162880163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70651 + ... + 72919.

It is an arithmetic number, because the mean of its divisors is an integer number (9510165).

Almost surely, 2^162880165 is an apocalyptic number.

It is an amenable number.

162880165 is a deficient number, since it is larger than the sum of its proper divisors (65363795).

162880165 is a wasteful number, since it uses less digits than its factorization.

162880165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581 (or 2574 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 162880165 is about 12762.4513711121. The cubic root of 162880165 is about 546.1216581852.

The spelling of 162880165 in words is "one hundred sixty-two million, eight hundred eighty thousand, one hundred sixty-five".