641100056671 has 8 divisors (see below), whose sum is σ = 641744546400. Its totient is φ = 640455688800.

The previous prime is 641100056669. The next prime is 641100056711. The reversal of 641100056671 is 176650001146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641100056671 - 2¹ = 641100056669 is a prime.

It is a super-2 number, since 2×641100056671² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 641100056671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641100056651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13416121 + ... + 13463821.

It is an arithmetic number, because the mean of its divisors is an integer number (80218068300).

Almost surely, 2^641100056671 is an apocalyptic number.

641100056671 is a deficient number, since it is larger than the sum of its proper divisors (644489729).

641100056671 is a wasteful number, since it uses less digits than its factorization.

641100056671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60929.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 641100056671 in words is "six hundred forty-one billion, one hundred million, fifty-six thousand, six hundred seventy-one".