516720916856 has 16 divisors (see below), whose sum is σ = 968884970040. Its totient is φ = 258351591520.

The previous prime is 516720916853. The next prime is 516720916871. The reversal of 516720916856 is 658619027615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516720916853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857351 + ... + 1329846.

Almost surely, 2^516720916856 is an apocalyptic number.

It is an amenable number.

516720916856 is a deficient number, since it is larger than the sum of its proper divisors (452164053184).

516720916856 is a wasteful number, since it uses less digits than its factorization.

516720916856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216734 (or 2216730 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 516720916856 in words is "five hundred sixteen billion, seven hundred twenty million, nine hundred sixteen thousand, eight hundred fifty-six".