12555628811 has 8 divisors (see below), whose sum is σ = 14417947200. Its totient is φ = 10813460040.

The previous prime is 12555628801. The next prime is 12555628819. The reversal of 12555628811 is 11882655521.

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

It is a cyclic number.

It is not a de Polignac number, because 12555628811 - 2⁶ = 12555628747 is a prime.

It is a super-2 number, since 2×12555628811² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12555628819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30037181 + ... + 30037598.

It is an arithmetic number, because the mean of its divisors is an integer number (1802243400).

Almost surely, 2^12555628811 is an apocalyptic number.

12555628811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12555628811 is a deficient number, since it is larger than the sum of its proper divisors (1862318389).

12555628811 is a wasteful number, since it uses less digits than its factorization.

12555628811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60074809.

The product of its digits is 192000, while the sum is 44.

The spelling of 12555628811 in words is "twelve billion, five hundred fifty-five million, six hundred twenty-eight thousand, eight hundred eleven".