671345168835 has 32 divisors (see below), whose sum is σ = 1199053709568. Its totient is φ = 317930901120.

The previous prime is 671345168833. The next prime is 671345168863. The reversal of 671345168835 is 538861543176.

It is not a de Polignac number, because 671345168835 - 2¹ = 671345168833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671345168833) 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 in 31 ways as a sum of consecutive naturals, for example, 47304052 + ... + 47318241.

It is an arithmetic number, because the mean of its divisors is an integer number (37470428424).

Almost surely, 2^671345168835 is an apocalyptic number.

671345168835 is a deficient number, since it is larger than the sum of its proper divisors (527708540733).

671345168835 is a wasteful number, since it uses less digits than its factorization.

671345168835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94622355.

The product of its digits is 14515200, while the sum is 57.

The spelling of 671345168835 in words is "six hundred seventy-one billion, three hundred forty-five million, one hundred sixty-eight thousand, eight hundred thirty-five".