668708348541 has 16 divisors (see below), whose sum is σ = 958506931200. Its totient is φ = 413356110768.

The previous prime is 668708348531. The next prime is 668708348569. The reversal of 668708348541 is 145843807866.

It is not a de Polignac number, because 668708348541 - 2⁹ = 668708348029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668708348531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124802911 + ... + 124808268.

It is an arithmetic number, because the mean of its divisors is an integer number (59906683200).

Almost surely, 2^668708348541 is an apocalyptic number.

It is an amenable number.

668708348541 is a deficient number, since it is larger than the sum of its proper divisors (289798582659).

668708348541 is a wasteful number, since it uses less digits than its factorization.

668708348541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249611248.

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 668708348541 in words is "six hundred sixty-eight billion, seven hundred eight million, three hundred forty-eight thousand, five hundred forty-one".