516556776673 has 16 divisors (see below), whose sum is σ = 595846366720. Its totient is φ = 438642216000.

The previous prime is 516556776667. The next prime is 516556776731. The reversal of 516556776673 is 376677655615.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 516556776673 - 2¹⁷ = 516556645601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516556776643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6231448 + ... + 6313798.

It is an arithmetic number, because the mean of its divisors is an integer number (37240397920).

Almost surely, 2^516556776673 is an apocalyptic number.

It is an amenable number.

516556776673 is a deficient number, since it is larger than the sum of its proper divisors (79289590047).

516556776673 is a wasteful number, since it uses less digits than its factorization.

516556776673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90688.

The product of its digits is 166698000, while the sum is 64.

The spelling of 516556776673 in words is "five hundred sixteen billion, five hundred fifty-six million, seven hundred seventy-six thousand, six hundred seventy-three".