516540331653 has 4 divisors (see below), whose sum is σ = 688720442208. Its totient is φ = 344360221100.

The previous prime is 516540331651. The next prime is 516540331673. The reversal of 516540331653 is 356133045615.

It is a happy number.

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 516540331653 - 2¹ = 516540331651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516540331651) 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 3 ways as a sum of consecutive naturals, for example, 86090055273 + ... + 86090055278.

It is an arithmetic number, because the mean of its divisors is an integer number (172180110552).

Almost surely, 2^516540331653 is an apocalyptic number.

It is an amenable number.

516540331653 is a deficient number, since it is larger than the sum of its proper divisors (172180110555).

516540331653 is a wasteful number, since it uses less digits than its factorization.

516540331653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172180110554.

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 516540331653 in words is "five hundred sixteen billion, five hundred forty million, three hundred thirty-one thousand, six hundred fifty-three".