163663137 has 24 divisors (see below), whose sum is σ = 259009920. Its totient is φ = 98760480.

The previous prime is 163663121. The next prime is 163663217. The reversal of 163663137 is 731366361.

163663137 is a `hidden beast` number, since 1 + 636 + 6 + 3 + 13 + 7 = 666.

It is not a de Polignac number, because 163663137 - 2⁴ = 163663121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163663337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20203 + ... + 27119.

It is an arithmetic number, because the mean of its divisors is an integer number (10792080).

Almost surely, 2^163663137 is an apocalyptic number.

It is an amenable number.

163663137 is a deficient number, since it is larger than the sum of its proper divisors (95346783).

163663137 is a wasteful number, since it uses less digits than its factorization.

163663137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7173 (or 7170 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 163663137 is about 12793.0894235912. The cubic root of 163663137 is about 546.9953365533.

It can be divided in two parts, 16366 and 3137, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 163663137 in words is "one hundred sixty-three million, six hundred sixty-three thousand, one hundred thirty-seven".