516716666 has 64 divisors (see below), whose sum is σ = 914457600. Its totient is φ = 217172736.

The previous prime is 516716639. The next prime is 516716677. The reversal of 516716666 is 666617615.

It is a super-2 number, since 2×516716666² = 533992225844311112, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1233005 + ... + 1233423.

It is an arithmetic number, because the mean of its divisors is an integer number (14288400).

Almost surely, 2^516716666 is an apocalyptic number.

516716666 is a deficient number, since it is larger than the sum of its proper divisors (397740934).

516716666 is a wasteful number, since it uses less digits than its factorization.

516716666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563.

The product of its digits is 272160, while the sum is 44.

The square root of 516716666 is about 22731.4026404003. The cubic root of 516716666 is about 802.4490916616.

The spelling of 516716666 in words is "five hundred sixteen million, seven hundred sixteen thousand, six hundred sixty-six".