11315645555 has 16 divisors (see below), whose sum is σ = 13914016704. Its totient is φ = 8829150720.

The previous prime is 11315645543. The next prime is 11315645597. The reversal of 11315645555 is 55554651311.

11315645555 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 11315645555 - 2³⁰ = 10241903731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

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, 1012679 + ... + 1023791.

It is an arithmetic number, because the mean of its divisors is an integer number (869626044).

Almost surely, 2^11315645555 is an apocalyptic number.

11315645555 is a deficient number, since it is larger than the sum of its proper divisors (2598371149).

11315645555 is a wasteful number, since it uses less digits than its factorization.

11315645555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16126.

The product of its digits is 225000, while the sum is 41.

The spelling of 11315645555 in words is "eleven billion, three hundred fifteen million, six hundred forty-five thousand, five hundred fifty-five".