516334213561 has 4 divisors (see below), whose sum is σ = 518494608000. Its totient is φ = 514173819124.

The previous prime is 516334213459. The next prime is 516334213579. The reversal of 516334213561 is 165312433615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 516334213561 - 2⁹ = 516334213049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516334243561) 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, 1080196861 + ... + 1080197338.

It is an arithmetic number, because the mean of its divisors is an integer number (129623652000).

Almost surely, 2^516334213561 is an apocalyptic number.

It is an amenable number.

516334213561 is a deficient number, since it is larger than the sum of its proper divisors (2160394439).

516334213561 is a wasteful number, since it uses less digits than its factorization.

516334213561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160394438.

The product of its digits is 194400, while the sum is 40.

The spelling of 516334213561 in words is "five hundred sixteen billion, three hundred thirty-four million, two hundred thirteen thousand, five hundred sixty-one".