168982663 has 8 divisors (see below), whose sum is σ = 175929968. Its totient is φ = 162160704.

The previous prime is 168982657. The next prime is 168982691. The reversal of 168982663 is 366289861.

It is a happy number.

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-168982663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168982063) 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, 28581 + ... + 33982.

It is an arithmetic number, because the mean of its divisors is an integer number (21991246).

Almost surely, 2^168982663 is an apocalyptic number.

168982663 is a deficient number, since it is larger than the sum of its proper divisors (6947305).

168982663 is an equidigital number, since it uses as much as digits as its factorization.

168982663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62673.

The product of its digits is 746496, while the sum is 49.

The square root of 168982663 is about 12999.3331752056. Note that the first 3 decimals coincide. The cubic root of 168982663 is about 552.8585749287.

The spelling of 168982663 in words is "one hundred sixty-eight million, nine hundred eighty-two thousand, six hundred sixty-three".