156645214189 has 2 divisors, whose sum is σ = 156645214190. Its totient is φ = 156645214188.

The previous prime is 156645214163. The next prime is 156645214207. The reversal of 156645214189 is 981412546651.

156645214189 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., 119825360964 + 36819853225 = 346158^2 + 191885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156645214189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156645214289) 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, 78322607094 + 78322607095.

It is an arithmetic number, because the mean of its divisors is an integer number (78322607095).

Almost surely, 2^156645214189 is an apocalyptic number.

It is an amenable number.

156645214189 is a deficient number, since it is larger than the sum of its proper divisors (1).

156645214189 is an equidigital number, since it uses as much as digits as its factorization.

156645214189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 52.

The spelling of 156645214189 in words is "one hundred fifty-six billion, six hundred forty-five million, two hundred fourteen thousand, one hundred eighty-nine".