1226668866 has 16 divisors (see below), whose sum is σ = 2484393600. Its totient is φ = 403713648.

The previous prime is 1226668843. The next prime is 1226668871. The reversal of 1226668866 is 6688666221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293481 + ... + 1294428.

It is an arithmetic number, because the mean of its divisors is an integer number (155274600).

Almost surely, 2^1226668866 is an apocalyptic number.

1226668866 is an abundant number, since it is smaller than the sum of its proper divisors (1257724734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226668866 is a wasteful number, since it uses less digits than its factorization.

1226668866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587993.

The product of its digits is 1990656, while the sum is 51.

The square root of 1226668866 is about 35023.8328285184. The cubic root of 1226668866 is about 1070.4731555162.

The spelling of 1226668866 in words is "one billion, two hundred twenty-six million, six hundred sixty-eight thousand, eight hundred sixty-six".