16398095993 has 2 divisors, whose sum is σ = 16398095994. Its totient is φ = 16398095992.

The previous prime is 16398095981. The next prime is 16398096007. The reversal of 16398095993 is 39959089361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16284822544 + 113273449 = 127612^2 + 10643^2 .

It is a cyclic number.

It is not a de Polignac number, because 16398095993 - 2³⁰ = 15324354169 is a prime.

It is not a weakly prime, because it can be changed into another prime (16398095953) 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 as a sum of consecutive naturals, namely, 8199047996 + 8199047997.

It is an arithmetic number, because the mean of its divisors is an integer number (8199047997).

Almost surely, 2^16398095993 is an apocalyptic number.

It is an amenable number.

16398095993 is a deficient number, since it is larger than the sum of its proper divisors (1).

16398095993 is an equidigital number, since it uses as much as digits as its factorization.

16398095993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14171760, while the sum is 62.

The spelling of 16398095993 in words is "sixteen billion, three hundred ninety-eight million, ninety-five thousand, nine hundred ninety-three".