12066665165051 has 4 divisors (see below), whose sum is σ = 13790474474352. Its totient is φ = 10342855855752.

The previous prime is 12066665165039. The next prime is 12066665165057. The reversal of 12066665165051 is 15056156666021.

It is a happy number.

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

It is not a de Polignac number, because 12066665165051 - 2¹⁸ = 12066664902907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12066665165057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861904654640 + ... + 861904654653.

It is an arithmetic number, because the mean of its divisors is an integer number (3447618618588).

Almost surely, 2^{12066665165051} is an apocalyptic number.

12066665165051 is a deficient number, since it is larger than the sum of its proper divisors (1723809309301).

12066665165051 is an equidigital number, since it uses as much as digits as its factorization.

12066665165051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723809309300.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 12066665165051 in words is "twelve trillion, sixty-six billion, six hundred sixty-five million, one hundred sixty-five thousand, fifty-one".