671155501301056 has 14 divisors (see below), whose sum is σ = 1331824197894410. Its totient is φ = 335577750650496.

The previous prime is 671155501301017. The next prime is 671155501301063. The reversal of 671155501301056 is 650103105551176.

It can be written as a sum of positive squares in only one way, i.e., 670973697985600 + 181803315456 = 25903160^2 + 426384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 671155501300997 and 671155501301015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5243402353851 + ... + 5243402353978.

Almost surely, 2^{671155501301056} is an apocalyptic number.

It is an amenable number.

671155501301056 is a deficient number, since it is larger than the sum of its proper divisors (660668696593354).

671155501301056 is a wasteful number, since it uses less digits than its factorization.

671155501301056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10486804707841 (or 10486804707831 counting only the distinct ones).

The product of its (nonzero) digits is 472500, while the sum is 46.

The spelling of 671155501301056 in words is "six hundred seventy-one trillion, one hundred fifty-five billion, five hundred one million, three hundred one thousand, fifty-six".