11000005505 has 8 divisors (see below), whose sum is σ = 13385922624. Its totient is φ = 8676060400.

The previous prime is 11000005501. The next prime is 11000005519. The reversal of 11000005505 is 50550000011.

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

It is not a de Polignac number, because 11000005505 - 2² = 11000005501 is a prime.

It is a super-2 number, since 2×11000005505² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11000005501) 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, 15492611 + ... + 15493320.

It is an arithmetic number, because the mean of its divisors is an integer number (1673240328).

Almost surely, 2^11000005505 is an apocalyptic number.

It is an amenable number.

11000005505 is a deficient number, since it is larger than the sum of its proper divisors (2385917119).

11000005505 is an equidigital number, since it uses as much as digits as its factorization.

11000005505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30986007.

The product of its (nonzero) digits is 125, while the sum is 17.

Adding to 11000005505 its reverse (50550000011), we get a palindrome (61550005516).

The spelling of 11000005505 in words is "eleven billion, five thousand, five hundred five".