671694645536608 has 48 divisors (see below), whose sum is σ = 1351653368647680. Its totient is φ = 328497061815936.

The previous prime is 671694645536591. The next prime is 671694645536623. The reversal of 671694645536608 is 806635546496176.

671694645536608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241327616 + ... + 1241868607.

It is an arithmetic number, because the mean of its divisors is an integer number (28159445180160).

Almost surely, 2^{671694645536608} is an apocalyptic number.

It is an amenable number.

671694645536608 is an abundant number, since it is smaller than the sum of its proper divisors (679958723111072).

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

671694645536608 is a wasteful number, since it uses less digits than its factorization.

671694645536608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483196419 (or 2483196411 counting only the distinct ones).

The product of its (nonzero) digits is 4702924800, while the sum is 76.

The spelling of 671694645536608 in words is "six hundred seventy-one trillion, six hundred ninety-four billion, six hundred forty-five million, five hundred thirty-six thousand, six hundred eight".