55644411444655 has 16 divisors (see below), whose sum is σ = 77128510410144. Its totient is φ = 38088153287680.

The previous prime is 55644411444641. The next prime is 55644411444799.

55644411444655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55644411444655 - 2¹⁵ = 55644411411887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55644411444655.

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, 29756368822 + ... + 29756370691.

It is an arithmetic number, because the mean of its divisors is an integer number (4820531900634).

Almost surely, 2^{55644411444655} is an apocalyptic number.

55644411444655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55644411444655 is a deficient number, since it is larger than the sum of its proper divisors (21484098965489).

55644411444655 is a wasteful number, since it uses less digits than its factorization.

55644411444655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59512739546.

The product of its digits is 92160000, while the sum is 58.

The spelling of 55644411444655 in words is "fifty-five trillion, six hundred forty-four billion, four hundred eleven million, four hundred forty-four thousand, six hundred fifty-five".