166413240157 has 2 divisors, whose sum is σ = 166413240158. Its totient is φ = 166413240156.

The previous prime is 166413240127. The next prime is 166413240199. The reversal of 166413240157 is 751042314661.

166413240157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92360680281 + 74052559876 = 303909^2 + 272126^2 .

It is an emirp because it is prime and its reverse (751042314661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166413240157 - 2¹⁹ = 166412715869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166413240127) 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, 83206620078 + 83206620079.

It is an arithmetic number, because the mean of its divisors is an integer number (83206620079).

Almost surely, 2^166413240157 is an apocalyptic number.

It is an amenable number.

166413240157 is a deficient number, since it is larger than the sum of its proper divisors (1).

166413240157 is an equidigital number, since it uses as much as digits as its factorization.

166413240157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 166413240157 in words is "one hundred sixty-six billion, four hundred thirteen million, two hundred forty thousand, one hundred fifty-seven".