1105805055812 has 12 divisors (see below), whose sum is σ = 1956902206140. Its totient is φ = 546690139776.

The previous prime is 1105805055703. The next prime is 1105805055827. The reversal of 1105805055812 is 2185505085011.

It can be written as a sum of positive squares in 2 ways, for example, as 676499670016 + 429305385796 = 822496^2 + 655214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1105805055812.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1553096633 + ... + 1553097344.

It is an arithmetic number, because the mean of its divisors is an integer number (163075183845).

Almost surely, 2^{1105805055812} is an apocalyptic number.

It is an amenable number.

1105805055812 is a deficient number, since it is larger than the sum of its proper divisors (851097150328).

1105805055812 is a wasteful number, since it uses less digits than its factorization.

1105805055812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106194070 (or 3106194068 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 41.

The spelling of 1105805055812 in words is "one trillion, one hundred five billion, eight hundred five million, fifty-five thousand, eight hundred twelve".