12665063062487 has 4 divisors (see below), whose sum is σ = 13816432431816. Its totient is φ = 11513693693160.

The previous prime is 12665063062429. The next prime is 12665063062499. The reversal of 12665063062487 is 78426036056621.

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 12665063062487 - 2¹⁸ = 12665062800343 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 (12665063062087) 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, 575684684648 + ... + 575684684669.

It is an arithmetic number, because the mean of its divisors is an integer number (3454108107954).

Almost surely, 2^{12665063062487} is an apocalyptic number.

12665063062487 is a deficient number, since it is larger than the sum of its proper divisors (1151369369329).

12665063062487 is a wasteful number, since it uses less digits than its factorization.

12665063062487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151369369328.

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 12665063062487 in words is "twelve trillion, six hundred sixty-five billion, sixty-three million, sixty-two thousand, four hundred eighty-seven".