516546056522365 has 4 divisors (see below), whose sum is σ = 619855267826844. Its totient is φ = 413236845217888.

The previous prime is 516546056522323. The next prime is 516546056522383. The reversal of 516546056522365 is 563225650645615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 351678684597604 + 164867371924761 = 18753098^2 + 12840069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516546056522365 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51654605652232 + ... + 51654605652241.

It is an arithmetic number, because the mean of its divisors is an integer number (154963816956711).

Almost surely, 2^{516546056522365} is an apocalyptic number.

It is an amenable number.

516546056522365 is a deficient number, since it is larger than the sum of its proper divisors (103309211304479).

516546056522365 is a wasteful number, since it uses less digits than its factorization.

516546056522365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103309211304478.

The product of its (nonzero) digits is 194400000, while the sum is 61.

The spelling of 516546056522365 in words is "five hundred sixteen trillion, five hundred forty-six billion, fifty-six million, five hundred twenty-two thousand, three hundred sixty-five".