516651213600644 has 24 divisors (see below), whose sum is σ = 952004773453440. Its totient is φ = 244657817004384.

The previous prime is 516651213600629. The next prime is 516651213600649. The reversal of 516651213600644 is 446006312156615.

It is a junction number, because it is equal to n+sod(n) for n = 516651213600592 and 516651213600601.

It is not an unprimeable number, because it can be changed into a prime (516651213600649) 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, 995644844 + ... + 996163619.

It is an arithmetic number, because the mean of its divisors is an integer number (39666865560560).

Almost surely, 2^{516651213600644} is an apocalyptic number.

It is an amenable number.

516651213600644 is a deficient number, since it is larger than the sum of its proper divisors (435353559852796).

516651213600644 is a wasteful number, since it uses less digits than its factorization.

516651213600644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991811899 (or 1991811897 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 516651213600644 in words is "five hundred sixteen trillion, six hundred fifty-one billion, two hundred thirteen million, six hundred thousand, six hundred forty-four".