515466668 has 24 divisors (see below), whose sum is σ = 912024960. Its totient is φ = 254897280.

The previous prime is 515466659. The next prime is 515466683. The reversal of 515466668 is 866664515.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 431480 + ... + 432672.

It is an arithmetic number, because the mean of its divisors is an integer number (38001040).

Almost surely, 2^515466668 is an apocalyptic number.

It is an amenable number.

515466668 is a deficient number, since it is larger than the sum of its proper divisors (396558292).

515466668 is a wasteful number, since it uses less digits than its factorization.

515466668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297 (or 2295 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 515466668 is about 22703.8910321557. The cubic root of 515466668 is about 801.8014964680.

The spelling of 515466668 in words is "five hundred fifteen million, four hundred sixty-six thousand, six hundred sixty-eight".