163543663 has 8 divisors (see below), whose sum is σ = 171871568. Its totient is φ = 155421504.

The previous prime is 163543651. The next prime is 163543727. The reversal of 163543663 is 366345361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163543663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163543643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49806 + ... + 52987.

It is an arithmetic number, because the mean of its divisors is an integer number (21483946).

Almost surely, 2^163543663 is an apocalyptic number.

163543663 is a deficient number, since it is larger than the sum of its proper divisors (8327905).

163543663 is a wasteful number, since it uses less digits than its factorization.

163543663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102873.

The product of its digits is 116640, while the sum is 37.

The square root of 163543663 is about 12788.4190969799. The cubic root of 163543663 is about 546.8622020537.

The spelling of 163543663 in words is "one hundred sixty-three million, five hundred forty-three thousand, six hundred sixty-three".