166353528349 has 2 divisors, whose sum is σ = 166353528350. Its totient is φ = 166353528348.

The previous prime is 166353528251. The next prime is 166353528377. The reversal of 166353528349 is 943825353661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166315521124 + 38007225 = 407818^2 + 6165^2 .

It is an emirp because it is prime and its reverse (943825353661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166353528349 - 2¹⁷ = 166353397277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166353528349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166353528389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83176764174 + 83176764175.

It is an arithmetic number, because the mean of its divisors is an integer number (83176764175).

Almost surely, 2^166353528349 is an apocalyptic number.

It is an amenable number.

166353528349 is a deficient number, since it is larger than the sum of its proper divisors (1).

166353528349 is an equidigital number, since it uses as much as digits as its factorization.

166353528349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13996800, while the sum is 55.

The spelling of 166353528349 in words is "one hundred sixty-six billion, three hundred fifty-three million, five hundred twenty-eight thousand, three hundred forty-nine".