16973143199 has 4 divisors (see below), whose sum is σ = 17011457736. Its totient is φ = 16934828664.

The previous prime is 16973143177. The next prime is 16973143211. The reversal of 16973143199 is 99134137961.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16973143199 - 2³² = 12678175903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16973143199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16973140199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19156604 + ... + 19157489.

It is an arithmetic number, because the mean of its divisors is an integer number (4252864434).

Almost surely, 2^16973143199 is an apocalyptic number.

16973143199 is a deficient number, since it is larger than the sum of its proper divisors (38314537).

16973143199 is an equidigital number, since it uses as much as digits as its factorization.

16973143199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38314536.

The product of its digits is 1102248, while the sum is 53.

The spelling of 16973143199 in words is "sixteen billion, nine hundred seventy-three million, one hundred forty-three thousand, one hundred ninety-nine".