667375107647 has 2 divisors, whose sum is σ = 667375107648. Its totient is φ = 667375107646.

The previous prime is 667375107617. The next prime is 667375107689. The reversal of 667375107647 is 746701573766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667375107647 - 2¹⁴ = 667375091263 is a prime.

It is a super-3 number, since 3×667375107647³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667375107617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333687553823 + 333687553824.

It is an arithmetic number, because the mean of its divisors is an integer number (333687553824).

Almost surely, 2^667375107647 is an apocalyptic number.

667375107647 is a deficient number, since it is larger than the sum of its proper divisors (1).

667375107647 is an equidigital number, since it uses as much as digits as its factorization.

667375107647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31116960, while the sum is 59.

The spelling of 667375107647 in words is "six hundred sixty-seven billion, three hundred seventy-five million, one hundred seven thousand, six hundred forty-seven".