165100563 has 12 divisors (see below), whose sum is σ = 244295688. Its totient is φ = 107382240.

The previous prime is 165100561. The next prime is 165100577. The reversal of 165100563 is 365001561.

It is a happy number.

165100563 is a `hidden beast` number, since 1 + 651 + 0 + 0 + 5 + 6 + 3 = 666.

It is not a de Polignac number, because 165100563 - 2¹ = 165100561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165100561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223345 + ... + 224082.

It is an arithmetic number, because the mean of its divisors is an integer number (20357974).

Almost surely, 2^165100563 is an apocalyptic number.

165100563 is a deficient number, since it is larger than the sum of its proper divisors (79195125).

165100563 is a wasteful number, since it uses less digits than its factorization.

165100563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447474 (or 447471 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 165100563 is about 12849.1463918814. The cubic root of 165100563 is about 548.5920606138.

The spelling of 165100563 in words is "one hundred sixty-five million, one hundred thousand, five hundred sixty-three".