165016365 has 32 divisors (see below), whose sum is σ = 280267776. Its totient is φ = 82621440.

The previous prime is 165016343. The next prime is 165016373. The reversal of 165016365 is 563610561.

It is not a de Polignac number, because 165016365 - 2⁶ = 165016301 is a prime.

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

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 31 ways as a sum of consecutive naturals, for example, 166020 + ... + 167010.

It is an arithmetic number, because the mean of its divisors is an integer number (8758368).

Almost surely, 2^165016365 is an apocalyptic number.

165016365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165016365 is a deficient number, since it is larger than the sum of its proper divisors (115251411).

165016365 is a wasteful number, since it uses less digits than its factorization.

165016365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 165016365 is about 12845.8695696321. The cubic root of 165016365 is about 548.4987877467.

The spelling of 165016365 in words is "one hundred sixty-five million, sixteen thousand, three hundred sixty-five".