671550651307 has 2 divisors, whose sum is σ = 671550651308. Its totient is φ = 671550651306.

The previous prime is 671550651287. The next prime is 671550651341. The reversal of 671550651307 is 703156055176.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 671550651307 - 2²⁷ = 671416433579 is a prime.

It is not a weakly prime, because it can be changed into another prime (671550651367) 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, 335775325653 + 335775325654.

It is an arithmetic number, because the mean of its divisors is an integer number (335775325654).

Almost surely, 2^671550651307 is an apocalyptic number.

671550651307 is a deficient number, since it is larger than the sum of its proper divisors (1).

671550651307 is an equidigital number, since it uses as much as digits as its factorization.

671550651307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 661500, while the sum is 46.

The spelling of 671550651307 in words is "six hundred seventy-one billion, five hundred fifty million, six hundred fifty-one thousand, three hundred seven".