2055655566 has 24 divisors (see below), whose sum is σ = 4456973664. Its totient is φ = 684748800.

The previous prime is 2055655541. The next prime is 2055655573. The reversal of 2055655566 is 6655565502.

2055655566 is a `hidden beast` number, since 20 + 5 + 5 + 65 + 5 + 566 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11635 + ... + 65166.

It is an arithmetic number, because the mean of its divisors is an integer number (185707236).

Almost surely, 2^2055655566 is an apocalyptic number.

2055655566 is an abundant number, since it is smaller than the sum of its proper divisors (2401318098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2055655566 is a wasteful number, since it uses less digits than its factorization.

2055655566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78296 (or 78293 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 45.

The square root of 2055655566 is about 45339.3379528197. The cubic root of 2055655566 is about 1271.5012247323.

The spelling of 2055655566 in words is "two billion, fifty-five million, six hundred fifty-five thousand, five hundred sixty-six".