12616666018013 has 16 divisors (see below), whose sum is σ = 13824310506480. Its totient is φ = 11461029113856.

The previous prime is 12616666018003. The next prime is 12616666018069. The reversal of 12616666018013 is 31081066661621.

It can be written as a sum of positive squares in 8 ways, for example, as 3771294088324 + 8845371929689 = 1941982^2 + 2974117^2 .

It is not a de Polignac number, because 12616666018013 - 2¹⁰ = 12616666016989 is a prime.

It is a super-2 number, since 2×12616666018013² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12616666018003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3070256 + ... + 5887257.

It is an arithmetic number, because the mean of its divisors is an integer number (864019406655).

Almost surely, 2^{12616666018013} is an apocalyptic number.

It is an amenable number.

12616666018013 is a deficient number, since it is larger than the sum of its proper divisors (1207644488467).

12616666018013 is a wasteful number, since it uses less digits than its factorization.

12616666018013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8960416.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 12616666018013 in words is "twelve trillion, six hundred sixteen billion, six hundred sixty-six million, eighteen thousand, thirteen".