2116610513 has 4 divisors (see below), whose sum is σ = 2151309108. Its totient is φ = 2081911920.

The previous prime is 2116610497. The next prime is 2116610533. The reversal of 2116610513 is 3150166112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 324612289 + 1791998224 = 18017^2 + 42332^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116610513 - 2⁴ = 2116610497 is a prime.

It is a super-3 number, since 3×2116610513³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116610533) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17349206 + ... + 17349327.

It is an arithmetic number, because the mean of its divisors is an integer number (537827277).

Almost surely, 2^2116610513 is an apocalyptic number.

It is an amenable number.

2116610513 is a deficient number, since it is larger than the sum of its proper divisors (34698595).

2116610513 is an equidigital number, since it uses as much as digits as its factorization.

2116610513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34698594.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 2116610513 is about 46006.6355322795. The cubic root of 2116610513 is about 1283.9466632299.

Adding to 2116610513 its reverse (3150166112), we get a palindrome (5266776625).

The spelling of 2116610513 in words is "two billion, one hundred sixteen million, six hundred ten thousand, five hundred thirteen".