668112622543 has 8 divisors (see below), whose sum is σ = 668812047120. Its totient is φ = 667413364800.

The previous prime is 668112622537. The next prime is 668112622549. The reversal of 668112622543 is 345226211866.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (668112622537) and next prime (668112622549).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-668112622543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 668112622493 and 668112622502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668112622549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8979193 + ... + 9053293.

It is an arithmetic number, because the mean of its divisors is an integer number (83601505890).

Almost surely, 2^668112622543 is an apocalyptic number.

668112622543 is a deficient number, since it is larger than the sum of its proper divisors (699424577).

668112622543 is a wasteful number, since it uses less digits than its factorization.

668112622543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83417.

The product of its digits is 829440, while the sum is 46.

The spelling of 668112622543 in words is "six hundred sixty-eight billion, one hundred twelve million, six hundred twenty-two thousand, five hundred forty-three".