12000166049 has 2 divisors, whose sum is σ = 12000166050. Its totient is φ = 12000166048.

The previous prime is 12000166043. The next prime is 12000166093. The reversal of 12000166049 is 94066100021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11997259024 + 2907025 = 109532^2 + 1705^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000166049 - 2¹⁶ = 12000100513 is a prime.

It is not a weakly prime, because it can be changed into another prime (12000166043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000083024 + 6000083025.

It is an arithmetic number, because the mean of its divisors is an integer number (6000083025).

Almost surely, 2^12000166049 is an apocalyptic number.

It is an amenable number.

12000166049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000166049 is an equidigital number, since it uses as much as digits as its factorization.

12000166049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 12000166049 in words is "twelve billion, one hundred sixty-six thousand, forty-nine".