5161112217 has 12 divisors (see below), whose sum is σ = 7577152804. Its totient is φ = 3384335520.

The previous prime is 5161112207. The next prime is 5161112237. The reversal of 5161112217 is 7122111615.

5161112217 is a `hidden beast` number, since 516 + 11 + 122 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 654541056 + 4506571161 = 25584^2 + 67131^2 .

It is not a de Polignac number, because 5161112217 - 2⁸ = 5161111961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5161112207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4699918 + ... + 4701015.

Almost surely, 2^5161112217 is an apocalyptic number.

It is an amenable number.

5161112217 is a deficient number, since it is larger than the sum of its proper divisors (2416040587).

5161112217 is a wasteful number, since it uses less digits than its factorization.

5161112217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9401000 (or 9400997 counting only the distinct ones).

The product of its digits is 840, while the sum is 27.

The square root of 5161112217 is about 71840.8812376352. The cubic root of 5161112217 is about 1728.1486668405.

The spelling of 5161112217 in words is "five billion, one hundred sixty-one million, one hundred twelve thousand, two hundred seventeen".