166633525141 has 2 divisors, whose sum is σ = 166633525142. Its totient is φ = 166633525140.

The previous prime is 166633525063. The next prime is 166633525147. The reversal of 166633525141 is 141525336661.

166633525141 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 can be written as a sum of positive squares in only one way, i.e., 135371749041 + 31261776100 = 367929^2 + 176810^2 .

It is a cyclic number.

It is not a de Polignac number, because 166633525141 - 2¹¹ = 166633523093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166633525147) 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, 83316762570 + 83316762571.

It is an arithmetic number, because the mean of its divisors is an integer number (83316762571).

Almost surely, 2^166633525141 is an apocalyptic number.

It is an amenable number.

166633525141 is a deficient number, since it is larger than the sum of its proper divisors (1).

166633525141 is an equidigital number, since it uses as much as digits as its factorization.

166633525141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The spelling of 166633525141 in words is "one hundred sixty-six billion, six hundred thirty-three million, five hundred twenty-five thousand, one hundred forty-one".