12065020051 has 24 divisors (see below), whose sum is σ = 14554307040. Its totient is φ = 9964104192.

The previous prime is 12065019997. The next prime is 12065020069. The reversal of 12065020051 is 15002056021.

It is a de Polignac number, because none of the positive numbers 2^k-12065020051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12065020081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154435 + ... + 219043.

It is an arithmetic number, because the mean of its divisors is an integer number (606429460).

Almost surely, 2^12065020051 is an apocalyptic number.

12065020051 is a deficient number, since it is larger than the sum of its proper divisors (2489286989).

12065020051 is a wasteful number, since it uses less digits than its factorization.

12065020051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64763 (or 64756 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 12065020051 its reverse (15002056021), we get a palindrome (27067076072).

The spelling of 12065020051 in words is "twelve billion, sixty-five million, twenty thousand, fifty-one".