670538666713 has 2 divisors, whose sum is σ = 670538666714. Its totient is φ = 670538666712.

The previous prime is 670538666653. The next prime is 670538666719. The reversal of 670538666713 is 317666835076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 669299063449 + 1239603264 = 818107^2 + 35208^2 .

It is a cyclic number.

It is not a de Polignac number, because 670538666713 - 2¹³ = 670538658521 is a prime.

It is not a weakly prime, because it can be changed into another prime (670538666719) 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, 335269333356 + 335269333357.

It is an arithmetic number, because the mean of its divisors is an integer number (335269333357).

Almost surely, 2^670538666713 is an apocalyptic number.

It is an amenable number.

670538666713 is a deficient number, since it is larger than the sum of its proper divisors (1).

670538666713 is an equidigital number, since it uses as much as digits as its factorization.

670538666713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 670538666713 in words is "six hundred seventy billion, five hundred thirty-eight million, six hundred sixty-six thousand, seven hundred thirteen".