1100666620866 has 16 divisors (see below), whose sum is σ = 2209456245888. Its totient is φ = 365535039600.

The previous prime is 1100666620847. The next prime is 1100666620873. The reversal of 1100666620866 is 6680266660011.

It is a super-2 number, since 2×1100666620866² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338456745 + ... + 338459996.

It is an arithmetic number, because the mean of its divisors is an integer number (138091015368).

Almost surely, 2^{1100666620866} is an apocalyptic number.

1100666620866 is an abundant number, since it is smaller than the sum of its proper divisors (1108789625022).

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

1100666620866 is a wasteful number, since it uses less digits than its factorization.

1100666620866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676917017.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 1100666620866 in words is "one trillion, one hundred billion, six hundred sixty-six million, six hundred twenty thousand, eight hundred sixty-six".