668083848135 has 16 divisors (see below), whose sum is σ = 1166109989760. Its totient is φ = 323919441440.

The previous prime is 668083848121. The next prime is 668083848137. The reversal of 668083848135 is 531848380866.

It is not a de Polignac number, because 668083848135 - 2⁹ = 668083847623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668083848137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2024496345 + ... + 2024496674.

It is an arithmetic number, because the mean of its divisors is an integer number (72881874360).

Almost surely, 2^668083848135 is an apocalyptic number.

668083848135 is a deficient number, since it is larger than the sum of its proper divisors (498026141625).

668083848135 is a wasteful number, since it uses less digits than its factorization.

668083848135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048993038.

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 668083848135 in words is "six hundred sixty-eight billion, eighty-three million, eight hundred forty-eight thousand, one hundred thirty-five".