12167999993 has 2 divisors, whose sum is σ = 12167999994. Its totient is φ = 12167999992.

The previous prime is 12167999983. The next prime is 12168000011. The reversal of 12167999993 is 39999976121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10738555129 + 1429444864 = 103627^2 + 37808^2 .

It is a cyclic number.

It is not a de Polignac number, because 12167999993 - 2⁶ = 12167999929 is a prime.

It is not a weakly prime, because it can be changed into another prime (12167999923) 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, 6083999996 + 6083999997.

It is an arithmetic number, because the mean of its divisors is an integer number (6083999997).

Almost surely, 2^12167999993 is an apocalyptic number.

It is an amenable number.

12167999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

12167999993 is an equidigital number, since it uses as much as digits as its factorization.

12167999993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14880348, while the sum is 65.

The spelling of 12167999993 in words is "twelve billion, one hundred sixty-seven million, nine hundred ninety-nine thousand, nine hundred ninety-three".