16398307193 has 2 divisors, whose sum is σ = 16398307194. Its totient is φ = 16398307192.

The previous prime is 16398307157. The next prime is 16398307199. The reversal of 16398307193 is 39170389361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11996382784 + 4401924409 = 109528^2 + 66347^2 .

It is a cyclic number.

It is not a de Polignac number, because 16398307193 - 2⁶ = 16398307129 is a prime.

It is not a weakly prime, because it can be changed into another prime (16398307199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8199153596 + 8199153597.

It is an arithmetic number, because the mean of its divisors is an integer number (8199153597).

Almost surely, 2^16398307193 is an apocalyptic number.

It is an amenable number.

16398307193 is a deficient number, since it is larger than the sum of its proper divisors (1).

16398307193 is an equidigital number, since it uses as much as digits as its factorization.

16398307193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 50.

The spelling of 16398307193 in words is "sixteen billion, three hundred ninety-eight million, three hundred seven thousand, one hundred ninety-three".