4166383810261 has 2 divisors, whose sum is σ = 4166383810262. Its totient is φ = 4166383810260.

The previous prime is 4166383810249. The next prime is 4166383810321. The reversal of 4166383810261 is 1620183836614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4154850339025 + 11533471236 = 2038345^2 + 107394^2 .

It is a cyclic number.

It is not a de Polignac number, because 4166383810261 - 2⁷ = 4166383810133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4166383810201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2083191905130 + 2083191905131.

It is an arithmetic number, because the mean of its divisors is an integer number (2083191905131).

Almost surely, 2^{4166383810261} is an apocalyptic number.

It is an amenable number.

4166383810261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4166383810261 is an equidigital number, since it uses as much as digits as its factorization.

4166383810261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 4166383810261 in words is "four trillion, one hundred sixty-six billion, three hundred eighty-three million, eight hundred ten thousand, two hundred sixty-one".