16682101681 has 8 divisors (see below), whose sum is σ = 19580536640. Its totient is φ = 13912486128.

The previous prime is 16682101663. The next prime is 16682101739. The reversal of 16682101681 is 18610128661.

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 16682101681 - 2¹⁷ = 16681970609 is a prime.

It is a super-2 number, since 2×16682101681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16682101621) 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, 32204571 + ... + 32205088.

It is an arithmetic number, because the mean of its divisors is an integer number (2447567080).

Almost surely, 2^16682101681 is an apocalyptic number.

It is an amenable number.

16682101681 is a deficient number, since it is larger than the sum of its proper divisors (2898434959).

16682101681 is an equidigital number, since it uses as much as digits as its factorization.

16682101681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64409703.

The product of its (nonzero) digits is 27648, while the sum is 40.

The spelling of 16682101681 in words is "sixteen billion, six hundred eighty-two million, one hundred one thousand, six hundred eighty-one".