516774668 has 24 divisors (see below), whose sum is σ = 915776400. Its totient is φ = 255140928.

The previous prime is 516774667. The next prime is 516774689. The reversal of 516774668 is 866477615.

It is not an unprimeable number, because it can be changed into a prime (516774667) 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, 136343 + ... + 140081.

It is an arithmetic number, because the mean of its divisors is an integer number (38157350).

Almost surely, 2^516774668 is an apocalyptic number.

It is an amenable number.

516774668 is a deficient number, since it is larger than the sum of its proper divisors (399001732).

516774668 is a wasteful number, since it uses less digits than its factorization.

516774668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169 (or 4167 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 516774668 is about 22732.6784167638. The cubic root of 516774668 is about 802.4791157953.

The spelling of 516774668 in words is "five hundred sixteen million, seven hundred seventy-four thousand, six hundred sixty-eight".