516655675051639 has 2 divisors, whose sum is σ = 516655675051640. Its totient is φ = 516655675051638.

The previous prime is 516655675051627. The next prime is 516655675051679. The reversal of 516655675051639 is 936150576556615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 516655675051639 - 2²⁷ = 516655540833911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516655675051679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258327837525819 + 258327837525820.

It is an arithmetic number, because the mean of its divisors is an integer number (258327837525820).

Almost surely, 2^{516655675051639} is an apocalyptic number.

516655675051639 is a deficient number, since it is larger than the sum of its proper divisors (1).

516655675051639 is an equidigital number, since it uses as much as digits as its factorization.

516655675051639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 765450000, while the sum is 70.

The spelling of 516655675051639 in words is "five hundred sixteen trillion, six hundred fifty-five billion, six hundred seventy-five million, fifty-one thousand, six hundred thirty-nine".