1668508343413 has 8 divisors (see below), whose sum is σ = 1669514662368. Its totient is φ = 1667502325104.

The previous prime is 1668508343351. The next prime is 1668508343473. The reversal of 1668508343413 is 3143438058661.

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-1668508343413 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 (1668508343473) 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, 11564706 + ... + 11708092.

It is an arithmetic number, because the mean of its divisors is an integer number (208689332796).

Almost surely, 2^{1668508343413} is an apocalyptic number.

It is an amenable number.

1668508343413 is a deficient number, since it is larger than the sum of its proper divisors (1006318955).

1668508343413 is a wasteful number, since it uses less digits than its factorization.

1668508343413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150323.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 1668508343413 in words is "one trillion, six hundred sixty-eight billion, five hundred eight million, three hundred forty-three thousand, four hundred thirteen".