16686837017 has 8 divisors (see below), whose sum is σ = 17271576840. Its totient is φ = 16102719360.

The previous prime is 16686836989. The next prime is 16686837031. The reversal of 16686837017 is 71073868661.

It can be written as a sum of positive squares in 4 ways, for example, as 1461991696 + 15224845321 = 38236^2 + 123389^2 .

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 16686837017 - 2³⁰ = 15613095193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16686837017.

It is not an unprimeable number, because it can be changed into a prime (16686836017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100628 + ... + 208565.

It is an arithmetic number, because the mean of its divisors is an integer number (2158947105).

Almost surely, 2^16686837017 is an apocalyptic number.

It is an amenable number.

16686837017 is a deficient number, since it is larger than the sum of its proper divisors (584739823).

16686837017 is a wasteful number, since it uses less digits than its factorization.

16686837017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311083.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 16686837017 in words is "sixteen billion, six hundred eighty-six million, eight hundred thirty-seven thousand, seventeen".