1105666565000 has 80 divisors (see below), whose sum is σ = 2591355750720. Its totient is φ = 442133640000.

The previous prime is 1105666564993. The next prime is 1105666565009. The reversal of 1105666565000 is 5656665011.

It is not an unprimeable number, because it can be changed into a prime (1105666565009) 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 in 19 ways as a sum of consecutive naturals, for example, 17523509 + ... + 17586491.

It is an arithmetic number, because the mean of its divisors is an integer number (32391946884).

Almost surely, 2^{1105666565000} is an apocalyptic number.

1105666565000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1105666565000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295677875360).

1105666565000 is an abundant number, since it is smaller than the sum of its proper divisors (1485689185720).

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

1105666565000 is an equidigital number, since it uses as much as digits as its factorization.

1105666565000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66520 (or 66501 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 1105666565000 in words is "one trillion, one hundred five billion, six hundred sixty-six million, five hundred sixty-five thousand".