2116353511 has 4 divisors (see below), whose sum is σ = 2240844912. Its totient is φ = 1991862112.

The previous prime is 2116353509. The next prime is 2116353521. The reversal of 2116353511 is 1153536112.

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

It is a cyclic number.

It is not a de Polignac number, because 2116353511 - 2¹ = 2116353509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2116353511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116353521) 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, 62245675 + ... + 62245708.

It is an arithmetic number, because the mean of its divisors is an integer number (560211228).

Almost surely, 2^2116353511 is an apocalyptic number.

2116353511 is a deficient number, since it is larger than the sum of its proper divisors (124491401).

2116353511 is a wasteful number, since it uses less digits than its factorization.

2116353511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124491400.

The product of its digits is 2700, while the sum is 28.

The square root of 2116353511 is about 46003.8423503950. The cubic root of 2116353511 is about 1283.8946948880.

Adding to 2116353511 its reverse (1153536112), we get a palindrome (3269889623).

The spelling of 2116353511 in words is "two billion, one hundred sixteen million, three hundred fifty-three thousand, five hundred eleven".