671508654136 has 96 divisors (see below), whose sum is σ = 1346997336480. Its totient is φ = 313759008000.

The previous prime is 671508654119. The next prime is 671508654149. The reversal of 671508654136 is 631456805176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80793421 + ... + 80801731.

It is an arithmetic number, because the mean of its divisors is an integer number (14031222255).

Almost surely, 2^671508654136 is an apocalyptic number.

It is an amenable number.

671508654136 is an abundant number, since it is smaller than the sum of its proper divisors (675488682344).

671508654136 is a wasteful number, since it uses less digits than its factorization.

671508654136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8733 (or 8710 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 671508654136 in words is "six hundred seventy-one billion, five hundred eight million, six hundred fifty-four thousand, one hundred thirty-six".