42166641107 has 2 divisors, whose sum is σ = 42166641108. Its totient is φ = 42166641106.

The previous prime is 42166641079. The next prime is 42166641163. The reversal of 42166641107 is 70114666124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42166641107 - 2¹⁰ = 42166640083 is a prime.

It is not a weakly prime, because it can be changed into another prime (42166641707) 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, 21083320553 + 21083320554.

It is an arithmetic number, because the mean of its divisors is an integer number (21083320554).

Almost surely, 2^42166641107 is an apocalyptic number.

42166641107 is a deficient number, since it is larger than the sum of its proper divisors (1).

42166641107 is an equidigital number, since it uses as much as digits as its factorization.

42166641107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 42166641107 in words is "forty-two billion, one hundred sixty-six million, six hundred forty-one thousand, one hundred seven".