16545856 has 28 divisors (see below), whose sum is σ = 32991552. Its totient is φ = 8233088.

The previous prime is 16545853. The next prime is 16545857. The reversal of 16545856 is 65854561.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (16545853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16341 + ... + 17323.

Almost surely, 2^16545856 is an apocalyptic number.

16545856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16545856 is a deficient number, since it is larger than the sum of its proper divisors (16445696).

16545856 is an equidigital number, since it uses as much as digits as its factorization.

16545856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1248 counting only the distinct ones).

The product of its digits is 144000, while the sum is 40.

The square root of 16545856 is about 4067.6597694498. The cubic root of 16545856 is about 254.8177911470.

The spelling of 16545856 in words is "sixteen million, five hundred forty-five thousand, eight hundred fifty-six".