516636105217 has 8 divisors (see below), whose sum is σ = 519643571040. Its totient is φ = 513633912960.

The previous prime is 516636105191. The next prime is 516636105301. The reversal of 516636105217 is 712501636615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516636105217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516636105917) 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 7 ways as a sum of consecutive naturals, for example, 1121803 + ... + 1513840.

It is an arithmetic number, because the mean of its divisors is an integer number (64955446380).

Almost surely, 2^516636105217 is an apocalyptic number.

It is an amenable number.

516636105217 is a deficient number, since it is larger than the sum of its proper divisors (3007465823).

516636105217 is a wasteful number, since it uses less digits than its factorization.

516636105217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636783.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 516636105217 in words is "five hundred sixteen billion, six hundred thirty-six million, one hundred five thousand, two hundred seventeen".