68554311111 has 48 divisors (see below), whose sum is σ = 116568816000. Its totient is φ = 38274845760.

The previous prime is 68554311109. The next prime is 68554311113. The reversal of 68554311111 is 11111345586.

68554311111 is a `hidden beast` number, since 68 + 55 + 431 + 1 + 111 = 666.

It is an interprime number because it is at equal distance from previous prime (68554311109) and next prime (68554311113).

It is not a de Polignac number, because 68554311111 - 2¹ = 68554311109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68554311113) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 588840 + ... + 695586.

It is an arithmetic number, because the mean of its divisors is an integer number (2428517000).

Almost surely, 2^68554311111 is an apocalyptic number.

68554311111 is a deficient number, since it is larger than the sum of its proper divisors (48014504889).

68554311111 is a wasteful number, since it uses less digits than its factorization.

68554311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107276 (or 107273 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

Adding to 68554311111 its reverse (11111345586), we get a palindrome (79665656697).

The spelling of 68554311111 in words is "sixty-eight billion, five hundred fifty-four million, three hundred eleven thousand, one hundred eleven".