11005550011 has 8 divisors (see below), whose sum is σ = 11215096704. Its totient is φ = 10796073600.

The previous prime is 11005549969. The next prime is 11005550051.

It is a happy number.

11005550011 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11005550011 - 2¹⁷ = 11005418939 is a prime.

It is a super-2 number, since 2×11005550011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11005550051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385686 + ... + 413236.

It is an arithmetic number, because the mean of its divisors is an integer number (1401887088).

Almost surely, 2^11005550011 is an apocalyptic number.

11005550011 is a deficient number, since it is larger than the sum of its proper divisors (209546693).

11005550011 is an equidigital number, since it uses as much as digits as its factorization.

11005550011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35141.

The product of its (nonzero) digits is 125, while the sum is 19.

The spelling of 11005550011 in words is "eleven billion, five million, five hundred fifty thousand, eleven".