16853516837 has 8 divisors (see below), whose sum is σ = 17545726200. Its totient is φ = 16168711104.

The previous prime is 16853516741. The next prime is 16853516863. The reversal of 16853516837 is 73861535861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4255474756 + 12598042081 = 65234^2 + 112241^2 .

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 16853516837 - 2¹⁶ = 16853451301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16853516887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846262 + ... + 1855367.

It is an arithmetic number, because the mean of its divisors is an integer number (2193215775).

Almost surely, 2^16853516837 is an apocalyptic number.

It is an amenable number.

16853516837 is a deficient number, since it is larger than the sum of its proper divisors (692209363).

16853516837 is a wasteful number, since it uses less digits than its factorization.

16853516837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701815.

The product of its digits is 3628800, while the sum is 53.

The spelling of 16853516837 in words is "sixteen billion, eight hundred fifty-three million, five hundred sixteen thousand, eight hundred thirty-seven".