12111492635655 has 48 divisors (see below), whose sum is σ = 22570491615840. Its totient is φ = 5529735176448.

The previous prime is 12111492635647. The next prime is 12111492635707. The reversal of 12111492635655 is 55653629411121.

It is not a de Polignac number, because 12111492635655 - 2³ = 12111492635647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12111492635598 and 12111492635607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9751860 + ... + 10923449.

It is an arithmetic number, because the mean of its divisors is an integer number (470218575330).

Almost surely, 2^{12111492635655} is an apocalyptic number.

12111492635655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12111492635655 is a deficient number, since it is larger than the sum of its proper divisors (10458998980185).

12111492635655 is a wasteful number, since it uses less digits than its factorization.

12111492635655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20676128 (or 20676121 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 51.

The spelling of 12111492635655 in words is "twelve trillion, one hundred eleven billion, four hundred ninety-two million, six hundred thirty-five thousand, six hundred fifty-five".