2108768555 has 16 divisors (see below), whose sum is σ = 2551733184. Its totient is φ = 1672928640.

The previous prime is 2108768489. The next prime is 2108768617. The reversal of 2108768555 is 5558678012.

It is a happy number.

It is not a de Polignac number, because 2108768555 - 2¹⁶ = 2108703019 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 334442 + ... + 340688.

It is an arithmetic number, because the mean of its divisors is an integer number (159483324).

Almost surely, 2^2108768555 is an apocalyptic number.

2108768555 is a deficient number, since it is larger than the sum of its proper divisors (442964629).

2108768555 is a wasteful number, since it uses less digits than its factorization.

2108768555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806.

The product of its (nonzero) digits is 672000, while the sum is 47.

The square root of 2108768555 is about 45921.3300656677. The cubic root of 2108768555 is about 1282.3590437695.

The spelling of 2108768555 in words is "two billion, one hundred eight million, seven hundred sixty-eight thousand, five hundred fifty-five".