516506556656 has 10 divisors (see below), whose sum is σ = 1000731453552. Its totient is φ = 258253278320.

The previous prime is 516506556649. The next prime is 516506556677. The reversal of 516506556656 is 656655605615.

It is a super-3 number, since 3×516506556656³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16140829880 + ... + 16140829911.

Almost surely, 2^516506556656 is an apocalyptic number.

It is an amenable number.

516506556656 is a deficient number, since it is larger than the sum of its proper divisors (484224896896).

516506556656 is a wasteful number, since it uses less digits than its factorization.

516506556656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32281659799 (or 32281659793 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 56.

The spelling of 516506556656 in words is "five hundred sixteen billion, five hundred six million, five hundred fifty-six thousand, six hundred fifty-six".