516214522321 has 8 divisors (see below), whose sum is σ = 523931315040. Its totient is φ = 508498085568.

The previous prime is 516214522319. The next prime is 516214522331. The reversal of 516214522321 is 123225412615.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 516214522321 - 2¹ = 516214522319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516214522331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4940265 + ... + 5043673.

It is an arithmetic number, because the mean of its divisors is an integer number (65491414380).

Almost surely, 2^516214522321 is an apocalyptic number.

It is an amenable number.

516214522321 is a deficient number, since it is larger than the sum of its proper divisors (7716792719).

516214522321 is a wasteful number, since it uses less digits than its factorization.

516214522321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177983.

The product of its digits is 28800, while the sum is 34.

Adding to 516214522321 its reverse (123225412615), we get a palindrome (639439934936).

The spelling of 516214522321 in words is "five hundred sixteen billion, two hundred fourteen million, five hundred twenty-two thousand, three hundred twenty-one".