1103385671866 has 4 divisors (see below), whose sum is σ = 1655078507802. Its totient is φ = 551692835932.

The previous prime is 1103385671851. The next prime is 1103385671867. The reversal of 1103385671866 is 6681765833011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 778338595225 + 325047076641 = 882235^2 + 570129^2 .

It is not an unprimeable number, because it can be changed into a prime (1103385671867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275846417965 + ... + 275846417968.

Almost surely, 2^{1103385671866} is an apocalyptic number.

1103385671866 is a deficient number, since it is larger than the sum of its proper divisors (551692835936).

1103385671866 is an equidigital number, since it uses as much as digits as its factorization.

1103385671866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551692835935.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 1103385671866 in words is "one trillion, one hundred three billion, three hundred eighty-five million, six hundred seventy-one thousand, eight hundred sixty-six".