1091316066 has 16 divisors (see below), whose sum is σ = 2202657600. Its totient is φ = 360434448.

The previous prime is 1091316019. The next prime is 1091316089. The reversal of 1091316066 is 6606131901.

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, 833686 + ... + 834993.

It is an arithmetic number, because the mean of its divisors is an integer number (137666100).

Almost surely, 2^1091316066 is an apocalyptic number.

1091316066 is an abundant number, since it is smaller than the sum of its proper divisors (1111341534).

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

1091316066 is a wasteful number, since it uses less digits than its factorization.

1091316066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668793.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1091316066 is about 33035.0732706922. The cubic root of 1091316066 is about 1029.5564955214.

Adding to 1091316066 its reverse (6606131901), we get a palindrome (7697447967).

The spelling of 1091316066 in words is "one billion, ninety-one million, three hundred sixteen thousand, sixty-six".