68115080855805 has 16 divisors (see below), whose sum is σ = 108985342611840. Its totient is φ = 36327638708928.

The previous prime is 68115080855803. The next prime is 68115080855837. The reversal of 68115080855805 is 50855808051186.

It is not a de Polignac number, because 68115080855805 - 2¹ = 68115080855803 is a prime.

It is a super-2 number, since 2×68115080855805² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68115080855803) 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, 23881057 + ... + 26580726.

It is an arithmetic number, because the mean of its divisors is an integer number (6811583913240).

Almost surely, 2^{68115080855805} is an apocalyptic number.

It is an amenable number.

68115080855805 is a deficient number, since it is larger than the sum of its proper divisors (40870261756035).

68115080855805 is a wasteful number, since it uses less digits than its factorization.

68115080855805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50551780.

The product of its (nonzero) digits is 15360000, while the sum is 60.

The spelling of 68115080855805 in words is "sixty-eight trillion, one hundred fifteen billion, eighty million, eight hundred fifty-five thousand, eight hundred five".