166683351733 has 2 divisors, whose sum is σ = 166683351734. Its totient is φ = 166683351732.

The previous prime is 166683351599. The next prime is 166683351739. The reversal of 166683351733 is 337153386661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165468341284 + 1215010449 = 406778^2 + 34857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166683351733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166683351739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83341675866 + 83341675867.

It is an arithmetic number, because the mean of its divisors is an integer number (83341675867).

Almost surely, 2^166683351733 is an apocalyptic number.

It is an amenable number.

166683351733 is a deficient number, since it is larger than the sum of its proper divisors (1).

166683351733 is an equidigital number, since it uses as much as digits as its factorization.

166683351733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 52.

The spelling of 166683351733 in words is "one hundred sixty-six billion, six hundred eighty-three million, three hundred fifty-one thousand, seven hundred thirty-three".