1668370170331 has 2 divisors, whose sum is σ = 1668370170332. Its totient is φ = 1668370170330.

The previous prime is 1668370170253. The next prime is 1668370170343. The reversal of 1668370170331 is 1330710738661.

It is a strong prime.

It is an emirp because it is prime and its reverse (1330710738661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1668370170331 - 2²¹ = 1668368073179 is a prime.

It is a super-2 number, since 2×1668370170331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1668370170371) 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, 834185085165 + 834185085166.

It is an arithmetic number, because the mean of its divisors is an integer number (834185085166).

Almost surely, 2^{1668370170331} is an apocalyptic number.

1668370170331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1668370170331 is an equidigital number, since it uses as much as digits as its factorization.

1668370170331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 1668370170331 in words is "one trillion, six hundred sixty-eight billion, three hundred seventy million, one hundred seventy thousand, three hundred thirty-one".