516081218 has 16 divisors (see below), whose sum is σ = 786494016. Its totient is φ = 253940880.

The previous prime is 516081169. The next prime is 516081259. The reversal of 516081218 is 812180615.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37748 + ... + 49568.

It is an arithmetic number, because the mean of its divisors is an integer number (49155876).

Almost surely, 2^516081218 is an apocalyptic number.

516081218 is a deficient number, since it is larger than the sum of its proper divisors (270412798).

516081218 is a wasteful number, since it uses less digits than its factorization.

516081218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12169.

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 516081218 is about 22717.4210244033. The cubic root of 516081218 is about 802.1200113522.

The spelling of 516081218 in words is "five hundred sixteen million, eighty-one thousand, two hundred eighteen".