516666804 has 12 divisors (see below), whose sum is σ = 1205555904. Its totient is φ = 172222264.

The previous prime is 516666797. The next prime is 516666827. The reversal of 516666804 is 408666615.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21527772 + ... + 21527795.

It is an arithmetic number, because the mean of its divisors is an integer number (100462992).

Almost surely, 2^516666804 is an apocalyptic number.

It is an amenable number.

516666804 is an abundant number, since it is smaller than the sum of its proper divisors (688889100).

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

516666804 is a wasteful number, since it uses less digits than its factorization.

516666804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43055574 (or 43055572 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 516666804 is about 22730.3058492401. The cubic root of 516666804 is about 802.4232793185.

The spelling of 516666804 in words is "five hundred sixteen million, six hundred sixty-six thousand, eight hundred four".