1668711665308 has 12 divisors (see below), whose sum is σ = 3092024556432. Its totient is φ = 785276077760.

The previous prime is 1668711665293. The next prime is 1668711665321. The reversal of 1668711665308 is 8035661178661.

It is a super-2 number, since 2×1668711665308² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12269938648 + ... + 12269938783.

It is an arithmetic number, because the mean of its divisors is an integer number (257668713036).

Almost surely, 2^{1668711665308} is an apocalyptic number.

It is an amenable number.

1668711665308 is a deficient number, since it is larger than the sum of its proper divisors (1423312891124).

1668711665308 is a wasteful number, since it uses less digits than its factorization.

1668711665308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24539877452 (or 24539877450 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 1668711665308 in words is "one trillion, six hundred sixty-eight billion, seven hundred eleven million, six hundred sixty-five thousand, three hundred eight".