2116485955 has 4 divisors (see below), whose sum is σ = 2539783152. Its totient is φ = 1693188760.

The previous prime is 2116485953. The next prime is 2116485991. The reversal of 2116485955 is 5595846112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2116485955 - 2¹ = 2116485953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116485953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211648591 + ... + 211648600.

It is an arithmetic number, because the mean of its divisors is an integer number (634945788).

Almost surely, 2^2116485955 is an apocalyptic number.

2116485955 is a deficient number, since it is larger than the sum of its proper divisors (423297197).

2116485955 is an equidigital number, since it uses as much as digits as its factorization.

2116485955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423297196.

The product of its digits is 432000, while the sum is 46.

The square root of 2116485955 is about 46005.2818163306. The cubic root of 2116485955 is about 1283.9214768979.

The spelling of 2116485955 in words is "two billion, one hundred sixteen million, four hundred eighty-five thousand, nine hundred fifty-five".