16666666666667 has 8 divisors (see below), whose sum is σ = 16921079748720. Its totient is φ = 16413745744000.

The previous prime is 16666666666649. The next prime is 16666666666673. The reversal of 16666666666667 is 76666666666661.

16666666666667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16666666666667 - 2³² = 16662371699371 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 16666666666591 and 16666666666600.

It is not an unprimeable number, because it can be changed into a prime (16666666266667) 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, 373017338 + ... + 373062015.

It is an arithmetic number, because the mean of its divisors is an integer number (2115134968590).

Almost surely, 2^{16666666666667} is an apocalyptic number.

16666666666667 is a deficient number, since it is larger than the sum of its proper divisors (254413082053).

16666666666667 is an equidigital number, since it uses as much as digits as its factorization.

16666666666667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746079693.

The product of its digits is 15237476352, while the sum is 80.

The spelling of 16666666666667 in words is "sixteen trillion, six hundred sixty-six billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-seven".