16776065 has 16 divisors (see below), whose sum is σ = 21012480. Its totient is φ = 12841920.

The previous prime is 16776047. The next prime is 16776077. The reversal of 16776065 is 56067761.

It is not a de Polignac number, because 16776065 - 2¹⁰ = 16775041 is a prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17960 + ... + 18870.

It is an arithmetic number, because the mean of its divisors is an integer number (1313280).

Almost surely, 2^16776065 is an apocalyptic number.

It is an amenable number.

16776065 is a deficient number, since it is larger than the sum of its proper divisors (4236415).

16776065 is a wasteful number, since it uses less digits than its factorization.

16776065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 16776065 is about 4095.8594946604. The cubic root of 16776065 is about 255.9941455774.

The spelling of 16776065 in words is "sixteen million, seven hundred seventy-six thousand, sixty-five".