12144227655 has 16 divisors (see below), whose sum is σ = 22206587904. Its totient is φ = 5551646880.

The previous prime is 12144227617. The next prime is 12144227671. The reversal of 12144227655 is 55672244121.

It is not a de Polignac number, because 12144227655 - 2¹⁴ = 12144211271 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 57829551 + ... + 57829760.

It is an arithmetic number, because the mean of its divisors is an integer number (1387911744).

Almost surely, 2^12144227655 is an apocalyptic number.

12144227655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12144227655 is a deficient number, since it is larger than the sum of its proper divisors (10062360249).

12144227655 is a wasteful number, since it uses less digits than its factorization.

12144227655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115659326.

The product of its digits is 134400, while the sum is 39.

The spelling of 12144227655 in words is "twelve billion, one hundred forty-four million, two hundred twenty-seven thousand, six hundred fifty-five".