68756320065 has 32 divisors (see below), whose sum is σ = 110421792000. Its totient is φ = 36532939520.

The previous prime is 68756320051. The next prime is 68756320121. The reversal of 68756320065 is 56002365786.

It is not a de Polignac number, because 68756320065 - 2⁴ = 68756320049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68756319996 and 68756320023.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15807511 + ... + 15811859.

It is an arithmetic number, because the mean of its divisors is an integer number (3450681000).

Almost surely, 2^68756320065 is an apocalyptic number.

It is an amenable number.

68756320065 is a deficient number, since it is larger than the sum of its proper divisors (41665471935).

68756320065 is a wasteful number, since it uses less digits than its factorization.

68756320065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8057.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 68756320065 in words is "sixty-eight billion, seven hundred fifty-six million, three hundred twenty thousand, sixty-five".