671113318563 has 48 divisors (see below), whose sum is σ = 1013455148160. Its totient is φ = 427553344512.

The previous prime is 671113318543. The next prime is 671113318583. The reversal of 671113318563 is 365813311176.

671113318563 is a `hidden beast` number, since 6 + 71 + 1 + 1 + 3 + 3 + 18 + 563 = 666.

It is an interprime number because it is at equal distance from previous prime (671113318543) and next prime (671113318583).

It is not a de Polignac number, because 671113318563 - 2⁸ = 671113318307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671113318543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5752095 + ... + 5867607.

It is an arithmetic number, because the mean of its divisors is an integer number (21113648920).

Almost surely, 2^671113318563 is an apocalyptic number.

671113318563 is a deficient number, since it is larger than the sum of its proper divisors (342341829597).

671113318563 is a wasteful number, since it uses less digits than its factorization.

671113318563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115868 (or 115865 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The spelling of 671113318563 in words is "six hundred seventy-one billion, one hundred thirteen million, three hundred eighteen thousand, five hundred sixty-three".