163863328 has 12 divisors (see below), whose sum is σ = 322605990. Its totient is φ = 81931648.

The previous prime is 163863313. The next prime is 163863373. The reversal of 163863328 is 823368361.

It can be written as a sum of positive squares in only one way, i.e., 157452304 + 6411024 = 12548^2 + 2532^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2560333 + ... + 2560396.

Almost surely, 2^163863328 is an apocalyptic number.

It is an amenable number.

163863328 is a deficient number, since it is larger than the sum of its proper divisors (158742662).

163863328 is an equidigital number, since it uses as much as digits as its factorization.

163863328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120739 (or 5120731 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 163863328 is about 12800.9112175657. The cubic root of 163863328 is about 547.2182719638.

The spelling of 163863328 in words is "one hundred sixty-three million, eight hundred sixty-three thousand, three hundred twenty-eight".