166916683441 has 2 divisors, whose sum is σ = 166916683442. Its totient is φ = 166916683440.

The previous prime is 166916683393. The next prime is 166916683489. The reversal of 166916683441 is 144386619661.

166916683441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (166916683393) and next prime (166916683489).

It can be written as a sum of positive squares in only one way, i.e., 166787292816 + 129390625 = 408396^2 + 11375^2 .

It is a cyclic number.

It is not a de Polignac number, because 166916683441 - 2⁷ = 166916683313 is a prime.

It is a super-2 number, since 2×166916683441² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166916683541) 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, 83458341720 + 83458341721.

It is an arithmetic number, because the mean of its divisors is an integer number (83458341721).

Almost surely, 2^166916683441 is an apocalyptic number.

It is an amenable number.

166916683441 is a deficient number, since it is larger than the sum of its proper divisors (1).

166916683441 is an equidigital number, since it uses as much as digits as its factorization.

166916683441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4478976, while the sum is 55.

The spelling of 166916683441 in words is "one hundred sixty-six billion, nine hundred sixteen million, six hundred eighty-three thousand, four hundred forty-one".