516631404666 has 32 divisors (see below), whose sum is σ = 1113764678208. Its totient is φ = 158817778560.

The previous prime is 516631404643. The next prime is 516631404683. The reversal of 516631404666 is 666404136615.

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 15 ways as a sum of consecutive naturals, for example, 2950411 + ... + 3120606.

It is an arithmetic number, because the mean of its divisors is an integer number (34805146194).

Almost surely, 2^516631404666 is an apocalyptic number.

516631404666 is an abundant number, since it is smaller than the sum of its proper divisors (597133273542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516631404666 is a wasteful number, since it uses less digits than its factorization.

516631404666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6072126.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 516631404666 in words is "five hundred sixteen billion, six hundred thirty-one million, four hundred four thousand, six hundred sixty-six".