163011663 has 16 divisors (see below), whose sum is σ = 241695840. Its totient is φ = 108585792.

The previous prime is 163011647. The next prime is 163011683. The reversal of 163011663 is 366110361.

It is a happy number.

It is not a de Polignac number, because 163011663 - 2⁴ = 163011647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163011683) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 60595 + ... + 63227.

It is an arithmetic number, because the mean of its divisors is an integer number (15105990).

Almost surely, 2^163011663 is an apocalyptic number.

163011663 is a deficient number, since it is larger than the sum of its proper divisors (78684177).

163011663 is a wasteful number, since it uses less digits than its factorization.

163011663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4935 (or 4929 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 163011663 is about 12767.6020849649. The cubic root of 163011663 is about 546.2685854034.

The spelling of 163011663 in words is "one hundred sixty-three million, eleven thousand, six hundred sixty-three".