2168394792111 has 24 divisors (see below), whose sum is σ = 3152099396160. Its totient is φ = 1436396947776.

The previous prime is 2168394792101. The next prime is 2168394792133. The reversal of 2168394792111 is 1112974938612.

2168394792111 is a `hidden beast` number, since 2 + 168 + 3 + 9 + 479 + 2 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 2168394792111 - 2²¹ = 2168392694959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168394792101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 579450 + ... + 2161608.

It is an arithmetic number, because the mean of its divisors is an integer number (131337474840).

Almost surely, 2^{2168394792111} is an apocalyptic number.

2168394792111 is a deficient number, since it is larger than the sum of its proper divisors (983704604049).

2168394792111 is a wasteful number, since it uses less digits than its factorization.

2168394792111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583135 (or 1583132 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The spelling of 2168394792111 in words is "two trillion, one hundred sixty-eight billion, three hundred ninety-four million, seven hundred ninety-two thousand, one hundred eleven".