668246261141 has 8 divisors (see below), whose sum is σ = 707121581184. Its totient is φ = 630189369040.

The previous prime is 668246261101. The next prime is 668246261143. The reversal of 668246261141 is 141162642866.

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

It is a cyclic number.

It is not a de Polignac number, because 668246261141 - 2⁶ = 668246261077 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 (668246261143) 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, 204605306 + ... + 204608571.

It is an arithmetic number, because the mean of its divisors is an integer number (88390197648).

Almost surely, 2^668246261141 is an apocalyptic number.

It is an amenable number.

668246261141 is a deficient number, since it is larger than the sum of its proper divisors (38875320043).

668246261141 is a wasteful number, since it uses less digits than its factorization.

668246261141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409213971.

The product of its digits is 663552, while the sum is 47.

The spelling of 668246261141 in words is "six hundred sixty-eight billion, two hundred forty-six million, two hundred sixty-one thousand, one hundred forty-one".