16211671670566 has 24 divisors (see below), whose sum is σ = 25185864464280. Its totient is φ = 7826042332416.

The previous prime is 16211671670561. The next prime is 16211671670587. The reversal of 16211671670566 is 66507617611261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16211671670561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51019830 + ... + 51336598.

It is an arithmetic number, because the mean of its divisors is an integer number (1049411019345).

Almost surely, 2^{16211671670566} is an apocalyptic number.

16211671670566 is a deficient number, since it is larger than the sum of its proper divisors (8974192793714).

16211671670566 is a wasteful number, since it uses less digits than its factorization.

16211671670566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347256 (or 347227 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 16211671670566 in words is "sixteen trillion, two hundred eleven billion, six hundred seventy-one million, six hundred seventy thousand, five hundred sixty-six".