2116655555 has 8 divisors (see below), whose sum is σ = 2902841952. Its totient is φ = 1451420928.

The previous prime is 2116655543. The next prime is 2116655587. The reversal of 2116655555 is 5555566112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2116655555 - 2⁴ = 2116655539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30237902 + ... + 30237971.

It is an arithmetic number, because the mean of its divisors is an integer number (362855244).

Almost surely, 2^2116655555 is an apocalyptic number.

2116655555 is a deficient number, since it is larger than the sum of its proper divisors (786186397).

2116655555 is an equidigital number, since it uses as much as digits as its factorization.

2116655555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60475885.

The product of its digits is 225000, while the sum is 41.

The square root of 2116655555 is about 46007.1250460187. The cubic root of 2116655555 is about 1283.9557707338.

The spelling of 2116655555 in words is "two billion, one hundred sixteen million, six hundred fifty-five thousand, five hundred fifty-five".