8440645055 has 16 divisors (see below), whose sum is σ = 10213711200. Its totient is φ = 6695969280.

The previous prime is 8440645049. The next prime is 8440645093. The reversal of 8440645055 is 5505460448.

8440645055 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8440645055 - 2⁴ = 8440645039 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, 1049891 + ... + 1057899.

It is an arithmetic number, because the mean of its divisors is an integer number (638356950).

Almost surely, 2^8440645055 is an apocalyptic number.

8440645055 is a deficient number, since it is larger than the sum of its proper divisors (1773066145).

8440645055 is a wasteful number, since it uses less digits than its factorization.

8440645055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9754.

The product of its (nonzero) digits is 384000, while the sum is 41.

The square root of 8440645055 is about 91872.9832703826. The cubic root of 8440645055 is about 2036.0661289559.

The spelling of 8440645055 in words is "eight billion, four hundred forty million, six hundred forty-five thousand, fifty-five".