12660051255 has 8 divisors (see below), whose sum is σ = 20256082032. Its totient is φ = 6752027328.

The previous prime is 12660051169. The next prime is 12660051269. The reversal of 12660051255 is 55215006621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12660051255 - 2⁹ = 12660050743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422001694 + ... + 422001723.

It is an arithmetic number, because the mean of its divisors is an integer number (2532010254).

Almost surely, 2^12660051255 is an apocalyptic number.

12660051255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12660051255 is a deficient number, since it is larger than the sum of its proper divisors (7596030777).

12660051255 is an equidigital number, since it uses as much as digits as its factorization.

12660051255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844003425.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 12660051255 its reverse (55215006621), we get a palindrome (67875057876).

The spelling of 12660051255 in words is "twelve billion, six hundred sixty million, fifty-one thousand, two hundred fifty-five".