11066011261 has 4 divisors (see below), whose sum is σ = 11118457024. Its totient is φ = 11013565500.

The previous prime is 11066011241. The next prime is 11066011279. The reversal of 11066011261 is 16211066011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11066011261 - 2²⁵ = 11032456829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11066011211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26222565 + ... + 26222986.

It is an arithmetic number, because the mean of its divisors is an integer number (2779614256).

Almost surely, 2^11066011261 is an apocalyptic number.

It is an amenable number.

11066011261 is a deficient number, since it is larger than the sum of its proper divisors (52445763).

11066011261 is an equidigital number, since it uses as much as digits as its factorization.

11066011261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52445762.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 11066011261 its reverse (16211066011), we get a palindrome (27277077272).

The spelling of 11066011261 in words is "eleven billion, sixty-six million, eleven thousand, two hundred sixty-one".