671161273466044 has 12 divisors (see below), whose sum is σ = 1174534468836624. Its totient is φ = 335579996655584.

The previous prime is 671161273466009. The next prime is 671161273466053. The reversal of 671161273466044 is 440664372161176.

It is a self number, because there is not a number n which added to its sum of digits gives 671161273466044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157656217 + ... + 161857360.

It is an arithmetic number, because the mean of its divisors is an integer number (97877872403052).

Almost surely, 2^{671161273466044} is an apocalyptic number.

It is an amenable number.

671161273466044 is a deficient number, since it is larger than the sum of its proper divisors (503373195370580).

671161273466044 is a wasteful number, since it uses less digits than its factorization.

671161273466044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320038724 (or 320038722 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 58.

The spelling of 671161273466044 in words is "six hundred seventy-one trillion, one hundred sixty-one billion, two hundred seventy-three million, four hundred sixty-six thousand, forty-four".