68165785422 has 36 divisors (see below), whose sum is σ = 171805604256. Its totient is φ = 19475938440.

The previous prime is 68165785421. The next prime is 68165785477. The reversal of 68165785422 is 22458756186.

68165785422 is a `hidden beast` number, since 6 + 8 + 16 + 578 + 54 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68165785421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 38641854 + ... + 38643617.

It is an arithmetic number, because the mean of its divisors is an integer number (4772377896).

Almost surely, 2^68165785422 is an apocalyptic number.

68165785422 is an abundant number, since it is smaller than the sum of its proper divisors (103639818834).

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

68165785422 is a wasteful number, since it uses less digits than its factorization.

68165785422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77285493 (or 77285483 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 68165785422 in words is "sixty-eight billion, one hundred sixty-five million, seven hundred eighty-five thousand, four hundred twenty-two".