165016 has 8 divisors (see below), whose sum is σ = 309420. Its totient is φ = 82504.

The previous prime is 165001. The next prime is 165037. The reversal of 165016 is 610561.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 164984 and 165002.

It is a congruent number.

It is an unprimeable number.

165016 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10306 + ... + 10321.

2¹⁶⁵⁰¹⁶ is an apocalyptic number.

It is an amenable number.

165016 is a deficient number, since it is larger than the sum of its proper divisors (144404).

165016 is a wasteful number, since it uses less digits than its factorization.

165016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20633 (or 20629 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 165016 is about 406.2216143929. The cubic root of 165016 is about 54.8498383338.

Subtracting from 165016 its product of nonzero digits (180), we obtain a square (164836 = 406²).

Adding to 165016 its reverse (610561), we get a palindrome (775577).

The spelling of 165016 in words is "one hundred sixty-five thousand, sixteen".