1668840053375 has 16 divisors (see below), whose sum is σ = 2272049878176. Its totient is φ = 1213701856000.

The previous prime is 1668840053369. The next prime is 1668840053407. The reversal of 1668840053375 is 5733500488661.

It is not a de Polignac number, because 1668840053375 - 2⁴ = 1668840053359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1668840053375.

It is a congruent number.

It is an unprimeable number.

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, 606849554 + ... + 606852303.

It is an arithmetic number, because the mean of its divisors is an integer number (142003117386).

Almost surely, 2^{1668840053375} is an apocalyptic number.

1668840053375 is a deficient number, since it is larger than the sum of its proper divisors (603209824801).

1668840053375 is a wasteful number, since it uses less digits than its factorization.

1668840053375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213701883 (or 1213701873 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 1668840053375 in words is "one trillion, six hundred sixty-eight billion, eight hundred forty million, fifty-three thousand, three hundred seventy-five".