516905066 has 4 divisors (see below), whose sum is σ = 775357602. Its totient is φ = 258452532.

The previous prime is 516905041. The next prime is 516905093. The reversal of 516905066 is 660509615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660509615 = 5 ⋅132101923.

It can be written as a sum of positive squares in only one way, i.e., 419389441 + 97515625 = 20479^2 + 9875^2 .

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 129226265 + ... + 129226268.

Almost surely, 2^516905066 is an apocalyptic number.

516905066 is a deficient number, since it is larger than the sum of its proper divisors (258452536).

516905066 is a wasteful number, since it uses less digits than its factorization.

516905066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258452535.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 516905066 is about 22735.5463096887. The cubic root of 516905066 is about 802.5466067658.

The spelling of 516905066 in words is "five hundred sixteen million, nine hundred five thousand, sixty-six".