16005063 has 4 divisors (see below), whose sum is σ = 21340088. Its totient is φ = 10670040.

The previous prime is 16005043. The next prime is 16005091. The reversal of 16005063 is 36050061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36050061 = 3 ⋅12016687.

It is not a de Polignac number, because 16005063 - 2⁶ = 16004999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16005023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2667508 + ... + 2667513.

It is an arithmetic number, because the mean of its divisors is an integer number (5335022).

Almost surely, 2^16005063 is an apocalyptic number.

16005063 is a deficient number, since it is larger than the sum of its proper divisors (5335025).

16005063 is an equidigital number, since it uses as much as digits as its factorization.

16005063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335024.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 16005063 is about 4000.6328249416. The cubic root of 16005063 is about 252.0107862604.

The spelling of 16005063 in words is "sixteen million, five thousand, sixty-three".