12065326999 has 4 divisors (see below), whose sum is σ = 13162174920. Its totient is φ = 10968479080.

The previous prime is 12065326997. The next prime is 12065327033. The reversal of 12065326999 is 99962356021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12065326999 - 2¹ = 12065326997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12065326997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548423944 + ... + 548423965.

It is an arithmetic number, because the mean of its divisors is an integer number (3290543730).

Almost surely, 2^12065326999 is an apocalyptic number.

12065326999 is a deficient number, since it is larger than the sum of its proper divisors (1096847921).

12065326999 is a wasteful number, since it uses less digits than its factorization.

12065326999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096847920.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 12065326999 in words is "twelve billion, sixty-five million, three hundred twenty-six thousand, nine hundred ninety-nine".