12005514145535 has 16 divisors (see below), whose sum is σ = 14493020928672. Its totient is φ = 9546980889600.

The previous prime is 12005514145523. The next prime is 12005514145543. The reversal of 12005514145535 is 53554141550021.

It is not a de Polignac number, because 12005514145535 - 2³² = 12001219178239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12005514145492 and 12005514145501.

It is a congruent number.

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, 10205006 + ... + 11320475.

It is an arithmetic number, because the mean of its divisors is an integer number (905813808042).

Almost surely, 2^{12005514145535} is an apocalyptic number.

12005514145535 is a deficient number, since it is larger than the sum of its proper divisors (2487506783137).

12005514145535 is a wasteful number, since it uses less digits than its factorization.

12005514145535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21526154.

The product of its (nonzero) digits is 300000, while the sum is 41.

Adding to 12005514145535 its reverse (53554141550021), we get a palindrome (65559655695556).

The spelling of 12005514145535 in words is "twelve trillion, five billion, five hundred fourteen million, one hundred forty-five thousand, five hundred thirty-five".