16016505 has 8 divisors (see below), whose sum is σ = 25626432. Its totient is φ = 8542128.

The previous prime is 16016503. The next prime is 16016521. The reversal of 16016505 is 50561061.

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

It is not a de Polignac number, because 16016505 - 2¹ = 16016503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16016503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533869 + ... + 533898.

It is an arithmetic number, because the mean of its divisors is an integer number (3203304).

Almost surely, 2^16016505 is an apocalyptic number.

16016505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16016505 is a deficient number, since it is larger than the sum of its proper divisors (9609927).

16016505 is a wasteful number, since it uses less digits than its factorization.

16016505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067775.

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

The square root of 16016505 is about 4002.0625932137. The cubic root of 16016505 is about 252.0708260230.

Adding to 16016505 its reverse (50561061), we get a palindrome (66577566).

The spelling of 16016505 in words is "sixteen million, sixteen thousand, five hundred five".