68486770066 has 128 divisors (see below), whose sum is σ = 126439004160. Its totient is φ = 27405734400.

The previous prime is 68486770049. The next prime is 68486770123. The reversal of 68486770066 is 66007768486.

It is a happy number.

68486770066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140629675 + ... + 140630161.

It is an arithmetic number, because the mean of its divisors is an integer number (987804720).

Almost surely, 2^68486770066 is an apocalyptic number.

68486770066 is a deficient number, since it is larger than the sum of its proper divisors (57952234094).

68486770066 is a wasteful number, since it uses less digits than its factorization.

68486770066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800.

The product of its (nonzero) digits is 16257024, while the sum is 58.

The spelling of 68486770066 in words is "sixty-eight billion, four hundred eighty-six million, seven hundred seventy thousand, sixty-six".