16666683273 has 12 divisors (see below), whose sum is σ = 24079843008. Its totient is φ = 11108470680.

The previous prime is 16666683251. The next prime is 16666683287. The reversal of 16666683273 is 37238666661.

It is not a de Polignac number, because 16666683273 - 2¹⁸ = 16666421129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16666683073) 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, 180765 + ... + 256922.

It is an arithmetic number, because the mean of its divisors is an integer number (2006653584).

Almost surely, 2^16666683273 is an apocalyptic number.

It is an amenable number.

16666683273 is a deficient number, since it is larger than the sum of its proper divisors (7413159735).

16666683273 is a wasteful number, since it uses less digits than its factorization.

16666683273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441924 (or 441921 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The spelling of 16666683273 in words is "sixteen billion, six hundred sixty-six million, six hundred eighty-three thousand, two hundred seventy-three".