16666676671 has 8 divisors (see below), whose sum is σ = 17547166080. Its totient is φ = 15786516888.

The previous prime is 16666676659. The next prime is 16666676687. The reversal of 16666676671 is 17667666661.

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 16666676671 - 2²³ = 16658288063 is a prime.

It is a super-2 number, since 2×16666676671² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16666676171) 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, 24990 + ... + 184276.

It is an arithmetic number, because the mean of its divisors is an integer number (2193395760).

Almost surely, 2^16666676671 is an apocalyptic number.

16666676671 is a deficient number, since it is larger than the sum of its proper divisors (880489409).

16666676671 is a wasteful number, since it uses less digits than its factorization.

16666676671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164813.

The product of its digits is 13716864, while the sum is 58.

The spelling of 16666676671 in words is "sixteen billion, six hundred sixty-six million, six hundred seventy-six thousand, six hundred seventy-one".