11434020565409 has 8 divisors (see below), whose sum is σ = 12738166147560. Its totient is φ = 10190532917376.

The previous prime is 11434020565343. The next prime is 11434020565411. The reversal of 11434020565409 is 90456502043411.

It is a happy number.

11434020565409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 47256238225 + 11386764327184 = 217385^2 + 3374428^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11434020565409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11434020565409.

It is not an unprimeable number, because it can be changed into a prime (11434020564409) 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, 15164483132 + ... + 15164483885.

It is an arithmetic number, because the mean of its divisors is an integer number (1592270768445).

Almost surely, 2^{11434020565409} is an apocalyptic number.

It is an amenable number.

11434020565409 is a deficient number, since it is larger than the sum of its proper divisors (1304145582151).

11434020565409 is a wasteful number, since it uses less digits than its factorization.

11434020565409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30328967059.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 11434020565409 in words is "eleven trillion, four hundred thirty-four billion, twenty million, five hundred sixty-five thousand, four hundred nine".