16682281689 has 8 divisors (see below), whose sum is σ = 22960559872. Its totient is φ = 10762762320.

The previous prime is 16682281669. The next prime is 16682281691. The reversal of 16682281689 is 98618228661.

It is a happy number.

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

It is not a de Polignac number, because 16682281689 - 2⁵ = 16682281657 is a prime.

It is a super-2 number, since 2×16682281689² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16682281669) 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, 89689594 + ... + 89689779.

It is an arithmetic number, because the mean of its divisors is an integer number (2870069984).

Almost surely, 2^16682281689 is an apocalyptic number.

It is an amenable number.

16682281689 is a deficient number, since it is larger than the sum of its proper divisors (6278278183).

16682281689 is a wasteful number, since it uses less digits than its factorization.

16682281689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179379407.

The product of its digits is 3981312, while the sum is 57.

The spelling of 16682281689 in words is "sixteen billion, six hundred eighty-two million, two hundred eighty-one thousand, six hundred eighty-nine".