68788163165 has 32 divisors (see below), whose sum is σ = 86122786560. Its totient is φ = 52696272384.

The previous prime is 68788163161. The next prime is 68788163167. The reversal of 68788163165 is 56136188786.

It is a cyclic number.

It is not a de Polignac number, because 68788163165 - 2² = 68788163161 is a prime.

It is a super-2 number, since 2×68788163165² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68788163161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6571706 + ... + 6582164.

It is an arithmetic number, because the mean of its divisors is an integer number (2691337080).

Almost surely, 2^68788163165 is an apocalyptic number.

It is an amenable number.

68788163165 is a deficient number, since it is larger than the sum of its proper divisors (17334623395).

68788163165 is a wasteful number, since it uses less digits than its factorization.

68788163165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061.

The product of its digits is 11612160, while the sum is 59.

The spelling of 68788163165 in words is "sixty-eight billion, seven hundred eighty-eight million, one hundred sixty-three thousand, one hundred sixty-five".