667384334341 has 4 divisors (see below), whose sum is σ = 667400015052. Its totient is φ = 667368653632.

The previous prime is 667384334299. The next prime is 667384334389. The reversal of 667384334341 is 143433483766.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143433483766 = 2 ⋅71716741883.

It can be written as a sum of positive squares in 2 ways, for example, as 532294272225 + 135090062116 = 729585^2 + 367546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667384334341 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 (667384334041) 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 3 ways as a sum of consecutive naturals, for example, 7776340 + ... + 7861693.

It is an arithmetic number, because the mean of its divisors is an integer number (166850003763).

Almost surely, 2^667384334341 is an apocalyptic number.

It is an amenable number.

667384334341 is a deficient number, since it is larger than the sum of its proper divisors (15680711).

667384334341 is a wasteful number, since it uses less digits than its factorization.

667384334341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15680710.

The product of its digits is 10450944, while the sum is 52.

The spelling of 667384334341 in words is "six hundred sixty-seven billion, three hundred eighty-four million, three hundred thirty-four thousand, three hundred forty-one".