55187622678155 has 8 divisors (see below), whose sum is σ = 72245615142384. Its totient is φ = 40136452856800.

The previous prime is 55187622678143. The next prime is 55187622678163.

55187622678155 is nontrivially palindromic in base 10.

55187622678155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55187622678155 - 2³² = 55183327710859 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 501705660656 + ... + 501705660765.

It is an arithmetic number, because the mean of its divisors is an integer number (9030701892798).

Almost surely, 2^{55187622678155} is an apocalyptic number.

55187622678155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55187622678155 is a deficient number, since it is larger than the sum of its proper divisors (17057992464229).

55187622678155 is a wasteful number, since it uses less digits than its factorization.

55187622678155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003411321437.

The product of its digits is 282240000, while the sum is 68.

The spelling of 55187622678155 in words is "fifty-five trillion, one hundred eighty-seven billion, six hundred twenty-two million, six hundred seventy-eight thousand, one hundred fifty-five".