68126666226 has 16 divisors (see below), whose sum is σ = 136255911744. Its totient is φ = 22708458864.

The previous prime is 68126666221. The next prime is 68126666227. The reversal of 68126666226 is 62266662186.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68126666221) 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 7 ways as a sum of consecutive naturals, for example, 500235 + ... + 621681.

It is an arithmetic number, because the mean of its divisors is an integer number (8515994484).

Almost surely, 2^68126666226 is an apocalyptic number.

68126666226 is an abundant number, since it is smaller than the sum of its proper divisors (68129245518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68126666226 is a wasteful number, since it uses less digits than its factorization.

68126666226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214945.

The product of its digits is 2985984, while the sum is 51.

The spelling of 68126666226 in words is "sixty-eight billion, one hundred twenty-six million, six hundred sixty-six thousand, two hundred twenty-six".