163663383 has 8 divisors (see below), whose sum is σ = 235003888. Its totient is φ = 100715904.

The previous prime is 163663373. The next prime is 163663387. The reversal of 163663383 is 383366361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163663383 - 2²⁶ = 96554519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 4196497 = 163663383 / (1 + 6 + 3 + 6 + 6 + 3 + 3 + 8 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163663387) 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 7 ways as a sum of consecutive naturals, for example, 2098210 + ... + 2098287.

It is an arithmetic number, because the mean of its divisors is an integer number (29375486).

Almost surely, 2^163663383 is an apocalyptic number.

163663383 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

163663383 is a deficient number, since it is larger than the sum of its proper divisors (71340505).

163663383 is a wasteful number, since it uses less digits than its factorization.

163663383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196513.

The product of its digits is 139968, while the sum is 39.

The square root of 163663383 is about 12793.0990381533. The cubic root of 163663383 is about 546.9956106137.

The spelling of 163663383 in words is "one hundred sixty-three million, six hundred sixty-three thousand, three hundred eighty-three".