516000645655 has 8 divisors (see below), whose sum is σ = 675491754384. Its totient is φ = 375273196800.

The previous prime is 516000645653. The next prime is 516000645673. The reversal of 516000645655 is 556546000615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 516000645655 - 2¹ = 516000645653 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 (516000645653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4690914906 + ... + 4690915015.

It is an arithmetic number, because the mean of its divisors is an integer number (84436469298).

Almost surely, 2^516000645655 is an apocalyptic number.

516000645655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

516000645655 is a deficient number, since it is larger than the sum of its proper divisors (159491108729).

516000645655 is a wasteful number, since it uses less digits than its factorization.

516000645655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381829937.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 516000645655 in words is "five hundred sixteen billion, six hundred forty-five thousand, six hundred fifty-five".