16020705 has 32 divisors (see below), whose sum is σ = 27417600. Its totient is φ = 7964352.

The previous prime is 16020703. The next prime is 16020713. The reversal of 16020705 is 50702061.

It is not a de Polignac number, because 16020705 - 2¹ = 16020703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16020703) 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 31 ways as a sum of consecutive naturals, for example, 18676 + ... + 19514.

It is an arithmetic number, because the mean of its divisors is an integer number (856800).

Almost surely, 2^16020705 is an apocalyptic number.

16020705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16020705 is a deficient number, since it is larger than the sum of its proper divisors (11396895).

16020705 is a wasteful number, since it uses less digits than its factorization.

16020705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 16020705 is about 4002.5872882424. The cubic root of 16020705 is about 252.0928575658.

Adding to 16020705 its reverse (50702061), we get a palindrome (66722766).

The spelling of 16020705 in words is "sixteen million, twenty thousand, seven hundred five".