671223120056534 has 16 divisors (see below), whose sum is σ = 1086174593834688. Its totient is φ = 309909897827712.

The previous prime is 671223120056527. The next prime is 671223120056539. The reversal of 671223120056534 is 435650021322176.

It is a happy number.

671223120056534 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 not an unprimeable number, because it can be changed into a prime (671223120056539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186243927182 + ... + 186243930785.

It is an arithmetic number, because the mean of its divisors is an integer number (67885912114668).

Almost surely, 2^{671223120056534} is an apocalyptic number.

671223120056534 is a deficient number, since it is larger than the sum of its proper divisors (414951473778154).

671223120056534 is a wasteful number, since it uses less digits than its factorization.

671223120056534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372487858039.

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 671223120056534 in words is "six hundred seventy-one trillion, two hundred twenty-three billion, one hundred twenty million, fifty-six thousand, five hundred thirty-four".