12012651516263 has 4 divisors (see below), whose sum is σ = 12013201593120. Its totient is φ = 12012101439408.

The previous prime is 12012651516191. The next prime is 12012651516269. The reversal of 12012651516263 is 36261515621021.

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 12012651516263 - 2¹⁰ = 12012651515239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012651516263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012651516269) 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, 275005670 + ... + 275049347.

It is an arithmetic number, because the mean of its divisors is an integer number (3003300398280).

Almost surely, 2^{12012651516263} is an apocalyptic number.

12012651516263 is a deficient number, since it is larger than the sum of its proper divisors (550076857).

12012651516263 is an equidigital number, since it uses as much as digits as its factorization.

12012651516263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550076856.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 12012651516263 in words is "twelve trillion, twelve billion, six hundred fifty-one million, five hundred sixteen thousand, two hundred sixty-three".