11051661505 has 16 divisors (see below), whose sum is σ = 13966142400. Its totient is φ = 8372306880.

The previous prime is 11051661499. The next prime is 11051661521. The reversal of 11051661505 is 50516615011.

11051661505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11051661505 - 2¹³ = 11051653313 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201766 + ... + 250624.

It is an arithmetic number, because the mean of its divisors is an integer number (872883900).

Almost surely, 2^11051661505 is an apocalyptic number.

It is an amenable number.

11051661505 is a deficient number, since it is larger than the sum of its proper divisors (2914480895).

11051661505 is a wasteful number, since it uses less digits than its factorization.

11051661505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51264.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 11051661505 in words is "eleven billion, fifty-one million, six hundred sixty-one thousand, five hundred five".