516496204821 has 16 divisors (see below), whose sum is σ = 714330115136. Its totient is φ = 331715938176.

The previous prime is 516496204789. The next prime is 516496204837. The reversal of 516496204821 is 128402694615.

It is not a de Polignac number, because 516496204821 - 2⁵ = 516496204789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516496204891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27414190 + ... + 27433023.

It is an arithmetic number, because the mean of its divisors is an integer number (44645632196).

Almost surely, 2^516496204821 is an apocalyptic number.

It is an amenable number.

516496204821 is a deficient number, since it is larger than the sum of its proper divisors (197833910315).

516496204821 is a wasteful number, since it uses less digits than its factorization.

516496204821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54847332.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 516496204821 in words is "five hundred sixteen billion, four hundred ninety-six million, two hundred four thousand, eight hundred twenty-one".