16856824057 has 8 divisors (see below), whose sum is σ = 17229871872. Its totient is φ = 16484376000.

The previous prime is 16856824051. The next prime is 16856824087. The reversal of 16856824057 is 75042865861.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16856824057 - 2¹¹ = 16856822009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16856823995 and 16856824013.

It is not an unprimeable number, because it can be changed into a prime (16856824051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92869 + ... + 205762.

It is an arithmetic number, because the mean of its divisors is an integer number (2153733984).

Almost surely, 2^16856824057 is an apocalyptic number.

It is an amenable number.

16856824057 is a deficient number, since it is larger than the sum of its proper divisors (373047815).

16856824057 is a wasteful number, since it uses less digits than its factorization.

16856824057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299879.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 16856824057 in words is "sixteen billion, eight hundred fifty-six million, eight hundred twenty-four thousand, fifty-seven".