16866223198 has 16 divisors (see below), whose sum is σ = 27604882944. Its totient is φ = 7664907160.

The previous prime is 16866223193. The next prime is 16866223229. The reversal of 16866223198 is 89132266861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16866223193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36561 + ... + 187267.

It is an arithmetic number, because the mean of its divisors is an integer number (1725305184).

Almost surely, 2^16866223198 is an apocalyptic number.

16866223198 is a deficient number, since it is larger than the sum of its proper divisors (10738659746).

16866223198 is a wasteful number, since it uses less digits than its factorization.

16866223198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155807.

The product of its digits is 1492992, while the sum is 52.

The spelling of 16866223198 in words is "sixteen billion, eight hundred sixty-six million, two hundred twenty-three thousand, one hundred ninety-eight".