68320167755156 has 6 divisors (see below), whose sum is σ = 119560293571530. Its totient is φ = 34160083877576.

The previous prime is 68320167755131. The next prime is 68320167755173. The reversal of 68320167755156 is 65155776102386.

68320167755156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 51953822410000 + 16366345345156 = 7207900^2 + 4045534^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8540020969391 + ... + 8540020969398.

It is an arithmetic number, because the mean of its divisors is an integer number (19926715595255).

Almost surely, 2^{68320167755156} is an apocalyptic number.

It is an amenable number.

68320167755156 is a deficient number, since it is larger than the sum of its proper divisors (51240125816374).

68320167755156 is a wasteful number, since it uses less digits than its factorization.

68320167755156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17080041938793 (or 17080041938791 counting only the distinct ones).

The product of its (nonzero) digits is 63504000, while the sum is 62.

The spelling of 68320167755156 in words is "sixty-eight trillion, three hundred twenty billion, one hundred sixty-seven million, seven hundred fifty-five thousand, one hundred fifty-six".