671087116656 has 120 divisors (see below), whose sum is σ = 2049056820720. Its totient is φ = 203339136000.

The previous prime is 671087116603. The next prime is 671087116663. The reversal of 671087116656 is 656611780176.

671087116656 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24381430 + ... + 24408938.

It is an arithmetic number, because the mean of its divisors is an integer number (17075473506).

Almost surely, 2^671087116656 is an apocalyptic number.

671087116656 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

671087116656 is an abundant number, since it is smaller than the sum of its proper divisors (1377969704064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671087116656 is a wasteful number, since it uses less digits than its factorization.

671087116656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42935 (or 42926 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 671087116656 in words is "six hundred seventy-one billion, eighty-seven million, one hundred sixteen thousand, six hundred fifty-six".