42166355625307 has 2 divisors, whose sum is σ = 42166355625308. Its totient is φ = 42166355625306.

The previous prime is 42166355625269. The next prime is 42166355625313. The reversal of 42166355625307 is 70352655366124.

42166355625307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42166355625307 is a prime.

It is not a weakly prime, because it can be changed into another prime (42166355628307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21083177812653 + 21083177812654.

It is an arithmetic number, because the mean of its divisors is an integer number (21083177812654).

Almost surely, 2^{42166355625307} is an apocalyptic number.

42166355625307 is a deficient number, since it is larger than the sum of its proper divisors (1).

42166355625307 is an equidigital number, since it uses as much as digits as its factorization.

42166355625307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216000, while the sum is 55.

The spelling of 42166355625307 in words is "forty-two trillion, one hundred sixty-six billion, three hundred fifty-five million, six hundred twenty-five thousand, three hundred seven".