1670586665437 has 2 divisors, whose sum is σ = 1670586665438. Its totient is φ = 1670586665436.

The previous prime is 1670586665353. The next prime is 1670586665441. The reversal of 1670586665437 is 7345666850761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1365955525081 + 304631140356 = 1168741^2 + 551934^2 .

It is a cyclic number.

It is not a de Polignac number, because 1670586665437 - 2⁷ = 1670586665309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670586663437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835293332718 + 835293332719.

It is an arithmetic number, because the mean of its divisors is an integer number (835293332719).

Almost surely, 2^{1670586665437} is an apocalyptic number.

It is an amenable number.

1670586665437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670586665437 is an equidigital number, since it uses as much as digits as its factorization.

1670586665437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 152409600, while the sum is 64.

The spelling of 1670586665437 in words is "one trillion, six hundred seventy billion, five hundred eighty-six million, six hundred sixty-five thousand, four hundred thirty-seven".