16430197983 has 4 divisors (see below), whose sum is σ = 21906930648. Its totient is φ = 10953465320.

The previous prime is 16430197963. The next prime is 16430197999. The reversal of 16430197983 is 38979103461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38979103461 = 3 ⋅12993034487.

It is a cyclic number.

It is not a de Polignac number, because 16430197983 - 2¹⁷ = 16430066911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16430197963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2738366328 + ... + 2738366333.

It is an arithmetic number, because the mean of its divisors is an integer number (5476732662).

Almost surely, 2^16430197983 is an apocalyptic number.

16430197983 is a deficient number, since it is larger than the sum of its proper divisors (5476732665).

16430197983 is an equidigital number, since it uses as much as digits as its factorization.

16430197983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476732664.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 16430197983 in words is "sixteen billion, four hundred thirty million, one hundred ninety-seven thousand, nine hundred eighty-three".