2116517245 has 16 divisors (see below), whose sum is σ = 2574711360. Its totient is φ = 1670091904.

The previous prime is 2116517243. The next prime is 2116517267. The reversal of 2116517245 is 5427156112.

It is a cyclic number.

It is not a de Polignac number, because 2116517245 - 2¹ = 2116517243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2116517245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116517243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116166 + ... + 133144.

It is an arithmetic number, because the mean of its divisors is an integer number (160919460).

Almost surely, 2^2116517245 is an apocalyptic number.

It is an amenable number.

2116517245 is a deficient number, since it is larger than the sum of its proper divisors (458194115).

2116517245 is a wasteful number, since it uses less digits than its factorization.

2116517245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17324.

The product of its digits is 16800, while the sum is 34.

The square root of 2116517245 is about 46005.6218847219. The cubic root of 2116517245 is about 1283.9278040058.

The spelling of 2116517245 in words is "two billion, one hundred sixteen million, five hundred seventeen thousand, two hundred forty-five".