648410816066 has 16 divisors (see below), whose sum is σ = 1055428532928. Its totient is φ = 296982051600.

The previous prime is 648410816063. The next prime is 648410816077. The reversal of 648410816066 is 660618014846.

It is not an unprimeable number, because it can be changed into a prime (648410816063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95183150 + ... + 95189961.

It is an arithmetic number, because the mean of its divisors is an integer number (65964283308).

Almost surely, 2^648410816066 is an apocalyptic number.

648410816066 is a deficient number, since it is larger than the sum of its proper divisors (407017716862).

648410816066 is a wasteful number, since it uses less digits than its factorization.

648410816066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190373257.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 648410816066 in words is "six hundred forty-eight billion, four hundred ten million, eight hundred sixteen thousand, sixty-six".