68169111755 has 16 divisors (see below), whose sum is σ = 85216454400. Its totient is φ = 52291889280.

The previous prime is 68169111737. The next prime is 68169111757. The reversal of 68169111755 is 55711196186.

It is a happy number.

It is not a de Polignac number, because 68169111755 - 2⁶ = 68169111691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68169111757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2000540 + ... + 2034329.

It is an arithmetic number, because the mean of its divisors is an integer number (5326028400).

Almost surely, 2^68169111755 is an apocalyptic number.

68169111755 is a deficient number, since it is larger than the sum of its proper divisors (17047342645).

68169111755 is a wasteful number, since it uses less digits than its factorization.

68169111755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035014.

The product of its digits is 453600, while the sum is 50.

The spelling of 68169111755 in words is "sixty-eight billion, one hundred sixty-nine million, one hundred eleven thousand, seven hundred fifty-five".