671345033205 has 192 divisors, whose sum is σ = 1393179955200. Its totient is φ = 272913338880.

The previous prime is 671345033197. The next prime is 671345033239. The reversal of 671345033205 is 502330543176.

It is not a de Polignac number, because 671345033205 - 2³ = 671345033197 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 191 ways as a sum of consecutive naturals, for example, 69615114 + ... + 69624756.

It is an arithmetic number, because the mean of its divisors is an integer number (7256145600).

Almost surely, 2^671345033205 is an apocalyptic number.

It is an amenable number.

671345033205 is an abundant number, since it is smaller than the sum of its proper divisors (721834921995).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671345033205 is a wasteful number, since it uses less digits than its factorization.

671345033205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9864 (or 9857 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 671345033205 in words is "six hundred seventy-one billion, three hundred forty-five million, thirty-three thousand, two hundred five".