1224399554055 has 24 divisors (see below), whose sum is σ = 2144171872752. Its totient is φ = 646280999424.

The previous prime is 1224399554047. The next prime is 1224399554069. The reversal of 1224399554055 is 5504559934221.

1224399554055 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 3 + 9 + 95 + 540 + 5 + 5 = 666.

It is not a de Polignac number, because 1224399554055 - 2³ = 1224399554047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224399553992 and 1224399554010.

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 23 ways as a sum of consecutive naturals, for example, 140247589 + ... + 140256318.

It is an arithmetic number, because the mean of its divisors is an integer number (89340494698).

Almost surely, 2^{1224399554055} is an apocalyptic number.

1224399554055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1224399554055 is a deficient number, since it is larger than the sum of its proper divisors (919772318697).

1224399554055 is a wasteful number, since it uses less digits than its factorization.

1224399554055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280504015 (or 280504012 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 54.

The spelling of 1224399554055 in words is "one trillion, two hundred twenty-four billion, three hundred ninety-nine million, five hundred fifty-four thousand, fifty-five".