667104376671 has 6 divisors (see below), whose sum is σ = 963595210760. Its totient is φ = 444736251108.

The previous prime is 667104376649. The next prime is 667104376709. The reversal of 667104376671 is 176673401766.

It is not a de Polignac number, because 667104376671 - 2¹⁵ = 667104343903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667104356671) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 37061354251 + ... + 37061354268.

Almost surely, 2^667104376671 is an apocalyptic number.

667104376671 is a deficient number, since it is larger than the sum of its proper divisors (296490834089).

667104376671 is a wasteful number, since it uses less digits than its factorization.

667104376671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74122708525 (or 74122708522 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 667104376671 in words is "six hundred sixty-seven billion, one hundred four million, three hundred seventy-six thousand, six hundred seventy-one".