671055670071647 has 32 divisors (see below), whose sum is σ = 823165627577472. Its totient is φ = 533934730727424.

The previous prime is 671055670071641. The next prime is 671055670071649. The reversal of 671055670071647 is 746170076550176.

671055670071647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 671055670071647 - 2¹² = 671055670067551 is a prime.

It is a super-2 number, since 2×671055670071647² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 671055670071647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671055670071641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1044525173 + ... + 1045167425.

It is an arithmetic number, because the mean of its divisors is an integer number (25723925861796).

Almost surely, 2^{671055670071647} is an apocalyptic number.

671055670071647 is a deficient number, since it is larger than the sum of its proper divisors (152109957505825).

671055670071647 is a wasteful number, since it uses less digits than its factorization.

671055670071647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762627.

The product of its (nonzero) digits is 51861600, while the sum is 62.

The spelling of 671055670071647 in words is "six hundred seventy-one trillion, fifty-five billion, six hundred seventy million, seventy-one thousand, six hundred forty-seven".