2111668216612 has 12 divisors (see below), whose sum is σ = 3702945694896. Its totient is φ = 1053683732360.

The previous prime is 2111668216573. The next prime is 2111668216717. The reversal of 2111668216612 is 2166128661112.

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 3 ways as a sum of consecutive naturals, for example, 537591778 + ... + 537595705.

It is an arithmetic number, because the mean of its divisors is an integer number (308578807908).

Almost surely, 2^{2111668216612} is an apocalyptic number.

It is an amenable number.

2111668216612 is a deficient number, since it is larger than the sum of its proper divisors (1591277478284).

2111668216612 is a wasteful number, since it uses less digits than its factorization.

2111668216612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075187978 (or 1075187976 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The spelling of 2111668216612 in words is "two trillion, one hundred eleven billion, six hundred sixty-eight million, two hundred sixteen thousand, six hundred twelve".