166389672077059 has 2 divisors, whose sum is σ = 166389672077060. Its totient is φ = 166389672077058.

The previous prime is 166389672076967. The next prime is 166389672077077. The reversal of 166389672077059 is 950770276983661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166389672077059 is a prime.

It is a super-2 number, since 2×166389672077059² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166389672077099) 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, 83194836038529 + 83194836038530.

It is an arithmetic number, because the mean of its divisors is an integer number (83194836038530).

Almost surely, 2^{166389672077059} is an apocalyptic number.

166389672077059 is a deficient number, since it is larger than the sum of its proper divisors (1).

166389672077059 is an equidigital number, since it uses as much as digits as its factorization.

166389672077059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440270720, while the sum is 76.

The spelling of 166389672077059 in words is "one hundred sixty-six trillion, three hundred eighty-nine billion, six hundred seventy-two million, seventy-seven thousand, fifty-nine".