104666148809 has 2 divisors, whose sum is σ = 104666148810. Its totient is φ = 104666148808.

The previous prime is 104666148779. The next prime is 104666148823. The reversal of 104666148809 is 908841666401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102345607225 + 2320541584 = 319915^2 + 48172^2 .

It is a cyclic number.

It is not a de Polignac number, because 104666148809 - 2¹⁶ = 104666083273 is a prime.

It is not a weakly prime, because it can be changed into another prime (104666142809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52333074404 + 52333074405.

It is an arithmetic number, because the mean of its divisors is an integer number (52333074405).

Almost surely, 2^104666148809 is an apocalyptic number.

It is an amenable number.

104666148809 is a deficient number, since it is larger than the sum of its proper divisors (1).

104666148809 is an equidigital number, since it uses as much as digits as its factorization.

104666148809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 104666148809 in words is "one hundred four billion, six hundred sixty-six million, one hundred forty-eight thousand, eight hundred nine".