667375107671 has 4 divisors (see below), whose sum is σ = 671062263144. Its totient is φ = 663687952200.

The previous prime is 667375107647. The next prime is 667375107689. The reversal of 667375107671 is 176701573766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 667375107671 - 2²⁶ = 667307998807 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 (667375107271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843577465 + ... + 1843577826.

It is an arithmetic number, because the mean of its divisors is an integer number (167765565786).

Almost surely, 2^667375107671 is an apocalyptic number.

667375107671 is a deficient number, since it is larger than the sum of its proper divisors (3687155473).

667375107671 is a wasteful number, since it uses less digits than its factorization.

667375107671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687155472.

The product of its (nonzero) digits is 7779240, while the sum is 56.

The spelling of 667375107671 in words is "six hundred sixty-seven billion, three hundred seventy-five million, one hundred seven thousand, six hundred seventy-one".