671326716455 has 8 divisors (see below), whose sum is σ = 805617227472. Its totient is φ = 537044594688.

The previous prime is 671326716449. The next prime is 671326716481. The reversal of 671326716455 is 554617623176.

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 671326716455 - 2⁸ = 671326716199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671326716397 and 671326716406.

It is a congruent number.

It is an unprimeable number.

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, 1919897 + ... + 2242466.

It is an arithmetic number, because the mean of its divisors is an integer number (100702153434).

Almost surely, 2^671326716455 is an apocalyptic number.

671326716455 is a deficient number, since it is larger than the sum of its proper divisors (134290511017).

671326716455 is a wasteful number, since it uses less digits than its factorization.

671326716455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194625.

The product of its digits is 6350400, while the sum is 53.

The spelling of 671326716455 in words is "six hundred seventy-one billion, three hundred twenty-six million, seven hundred sixteen thousand, four hundred fifty-five".