516216819 has 8 divisors (see below), whose sum is σ = 688709632. Its totient is φ = 343934280.

The previous prime is 516216803. The next prime is 516216829. The reversal of 516216819 is 918612615.

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

It is not a de Polignac number, because 516216819 - 2⁴ = 516216803 is a prime.

It is a super-2 number, since 2×516216819² = 532959608436957522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516216829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46747 + ... + 56724.

It is an arithmetic number, because the mean of its divisors is an integer number (86088704).

Almost surely, 2^516216819 is an apocalyptic number.

516216819 is a deficient number, since it is larger than the sum of its proper divisors (172492813).

516216819 is a wasteful number, since it uses less digits than its factorization.

516216819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105137.

The product of its digits is 25920, while the sum is 39.

The square root of 516216819 is about 22720.4053440954. The cubic root of 516216819 is about 802.1902578863.

The spelling of 516216819 in words is "five hundred sixteen million, two hundred sixteen thousand, eight hundred nineteen".