2105266655 has 16 divisors (see below), whose sum is σ = 2708795520. Its totient is φ = 1565071872.

The previous prime is 2105266649. The next prime is 2105266693. The reversal of 2105266655 is 5566625012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2105266655 - 2⁸ = 2105266399 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 150044 + ... + 163473.

It is an arithmetic number, because the mean of its divisors is an integer number (169299720).

Almost surely, 2^2105266655 is an apocalyptic number.

2105266655 is a deficient number, since it is larger than the sum of its proper divisors (603528865).

2105266655 is a wasteful number, since it uses less digits than its factorization.

2105266655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313618.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 2105266655 is about 45883.1848829176. The cubic root of 2105266655 is about 1281.6488059982.

The spelling of 2105266655 in words is "two billion, one hundred five million, two hundred sixty-six thousand, six hundred fifty-five".