16516005 has 32 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 7951680.

The previous prime is 16515973. The next prime is 16516009. The reversal of 16516005 is 50061561.

16516005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16516005 - 2⁵ = 16515973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16516009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32584 + ... + 33086.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 2^16516005 is an apocalyptic number.

16516005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16516005 is a deficient number, since it is larger than the sum of its proper divisors (12514395).

16516005 is a wasteful number, since it uses less digits than its factorization.

16516005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 16516005 is about 4063.9888041184. The cubic root of 16516005 is about 254.6644567833.

Adding to 16516005 its reverse (50061561), we get a palindrome (66577566).

The spelling of 16516005 in words is "sixteen million, five hundred sixteen thousand, five".