671125502656 has 56 divisors (see below), whose sum is σ = 1522261481760. Its totient is φ = 287578970112.

The previous prime is 671125502527. The next prime is 671125502687. The reversal of 671125502656 is 656205521176.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2745036 + ... + 2979508.

Almost surely, 2^671125502656 is an apocalyptic number.

It is an amenable number.

671125502656 is an abundant number, since it is smaller than the sum of its proper divisors (851135979104).

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

671125502656 is a wasteful number, since it uses less digits than its factorization.

671125502656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240881 (or 240871 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 671125502656 in words is "six hundred seventy-one billion, one hundred twenty-five million, five hundred two thousand, six hundred fifty-six".