11305418865 has 32 divisors (see below), whose sum is σ = 19770877056. Its totient is φ = 5482667520.

The previous prime is 11305418849. The next prime is 11305418879. The reversal of 11305418865 is 56881450311.

It is not a de Polignac number, because 11305418865 - 2⁴ = 11305418849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419596 + ... + 445725.

It is an arithmetic number, because the mean of its divisors is an integer number (617839908).

Almost surely, 2^11305418865 is an apocalyptic number.

11305418865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11305418865 is a deficient number, since it is larger than the sum of its proper divisors (8465458191).

11305418865 is a wasteful number, since it uses less digits than its factorization.

11305418865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865409.

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 11305418865 in words is "eleven billion, three hundred five million, four hundred eighteen thousand, eight hundred sixty-five".