844224506666 has 32 divisors (see below), whose sum is σ = 1405472923008. Its totient is φ = 378578511360.

The previous prime is 844224506621. The next prime is 844224506677. The reversal of 844224506666 is 666605422448.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6982070 + ... + 7101953.

It is an arithmetic number, because the mean of its divisors is an integer number (43921028844).

Almost surely, 2^844224506666 is an apocalyptic number.

844224506666 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

844224506666 is a deficient number, since it is larger than the sum of its proper divisors (561248416342).

844224506666 is a wasteful number, since it uses less digits than its factorization.

844224506666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14084126.

The product of its (nonzero) digits is 13271040, while the sum is 53.

The spelling of 844224506666 in words is "eight hundred forty-four billion, two hundred twenty-four million, five hundred six thousand, six hundred sixty-six".