11056006505 has 16 divisors (see below), whose sum is σ = 13856866560. Its totient is φ = 8452411968.

The previous prime is 11056006499. The next prime is 11056006513. The reversal of 11056006505 is 50560065011.

It is a cyclic number.

It is not a de Polignac number, because 11056006505 - 2¹⁸ = 11055744361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81716 + ... + 169674.

It is an arithmetic number, because the mean of its divisors is an integer number (866054160).

Almost surely, 2^11056006505 is an apocalyptic number.

It is an amenable number.

11056006505 is a deficient number, since it is larger than the sum of its proper divisors (2800860055).

11056006505 is a wasteful number, since it uses less digits than its factorization.

11056006505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89080.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 11056006505 in words is "eleven billion, fifty-six million, six thousand, five hundred five".