2111666322653 has 8 divisors (see below), whose sum is σ = 2132643621600. Its totient is φ = 2090690390800.

The previous prime is 2111666322643. The next prime is 2111666322679. The reversal of 2111666322653 is 3562236661112.

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 2111666322653 - 2¹² = 2111666318557 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 (2111666322643) 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, 2916326 + ... + 3567672.

It is an arithmetic number, because the mean of its divisors is an integer number (266580452700).

Almost surely, 2^{2111666322653} is an apocalyptic number.

It is an amenable number.

2111666322653 is a deficient number, since it is larger than the sum of its proper divisors (20977298947).

2111666322653 is a wasteful number, since it uses less digits than its factorization.

2111666322653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683547.

The product of its digits is 466560, while the sum is 44.

The spelling of 2111666322653 in words is "two trillion, one hundred eleven billion, six hundred sixty-six million, three hundred twenty-two thousand, six hundred fifty-three".