801666673607 has 2 divisors, whose sum is σ = 801666673608. Its totient is φ = 801666673606.

The previous prime is 801666673597. The next prime is 801666673657. The reversal of 801666673607 is 706376666108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801666673607 - 2¹⁸ = 801666411463 is a prime.

It is a super-2 number, since 2×801666673607² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801666673657) 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, 400833336803 + 400833336804.

It is an arithmetic number, because the mean of its divisors is an integer number (400833336804).

Almost surely, 2^801666673607 is an apocalyptic number.

801666673607 is a deficient number, since it is larger than the sum of its proper divisors (1).

801666673607 is an equidigital number, since it uses as much as digits as its factorization.

801666673607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 801666673607 in words is "eight hundred one billion, six hundred sixty-six million, six hundred seventy-three thousand, six hundred seven".