2178436055 has 16 divisors (see below), whose sum is σ = 2661759360. Its totient is φ = 1711065888.

The previous prime is 2178436033. The next prime is 2178436069. The reversal of 2178436055 is 5506348712.

2178436055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2178436055 - 2¹⁸ = 2178173911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256304 + ... + 264666.

It is an arithmetic number, because the mean of its divisors is an integer number (166359960).

Almost surely, 2^2178436055 is an apocalyptic number.

2178436055 is a deficient number, since it is larger than the sum of its proper divisors (483323305).

2178436055 is an equidigital number, since it uses as much as digits as its factorization.

2178436055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9310.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 2178436055 is about 46673.7191040097. The cubic root of 2178436055 is about 1296.3281107895.

The spelling of 2178436055 in words is "two billion, one hundred seventy-eight million, four hundred thirty-six thousand, fifty-five".