166683333353 has 2 divisors, whose sum is σ = 166683333354. Its totient is φ = 166683333352.

The previous prime is 166683333301. The next prime is 166683333391. The reversal of 166683333353 is 353333386661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161385385984 + 5297947369 = 401728^2 + 72787^2 .

It is a cyclic number.

It is not a de Polignac number, because 166683333353 - 2¹⁸ = 166683071209 is a prime.

It is not a weakly prime, because it can be changed into another prime (166683333053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83341666676 + 83341666677.

It is an arithmetic number, because the mean of its divisors is an integer number (83341666677).

Almost surely, 2^166683333353 is an apocalyptic number.

It is an amenable number.

166683333353 is a deficient number, since it is larger than the sum of its proper divisors (1).

166683333353 is an equidigital number, since it uses as much as digits as its factorization.

166683333353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 50.

The spelling of 166683333353 in words is "one hundred sixty-six billion, six hundred eighty-three million, three hundred thirty-three thousand, three hundred fifty-three".