163845711 has 24 divisors (see below), whose sum is σ = 251203680. Its totient is φ = 102552576.

The previous prime is 163845709. The next prime is 163845719. The reversal of 163845711 is 117548361.

163845711 is a `hidden beast` number, since 1 + 6 + 3 + 84 + 571 + 1 = 666.

It is not a de Polignac number, because 163845711 - 2¹ = 163845709 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163845719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75895 + ... + 78023.

It is an arithmetic number, because the mean of its divisors is an integer number (10466820).

Almost surely, 2^163845711 is an apocalyptic number.

163845711 is a deficient number, since it is larger than the sum of its proper divisors (87357969).

163845711 is a wasteful number, since it uses less digits than its factorization.

163845711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655 (or 2652 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 163845711 is about 12800.2230839935. The cubic root of 163845711 is about 547.1986607225.

The spelling of 163845711 in words is "one hundred sixty-three million, eight hundred forty-five thousand, seven hundred eleven".