506703163985 has 4 divisors (see below), whose sum is σ = 608043796788. Its totient is φ = 405362531184.

The previous prime is 506703163969. The next prime is 506703163991. The reversal of 506703163985 is 589361307605.

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 366257356864 + 140445807121 = 605192^2 + 374761^2 .

It is a cyclic number.

It is not a de Polignac number, because 506703163985 - 2⁴ = 506703163969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50670316394 + ... + 50670316403.

It is an arithmetic number, because the mean of its divisors is an integer number (152010949197).

Almost surely, 2^506703163985 is an apocalyptic number.

It is an amenable number.

506703163985 is a deficient number, since it is larger than the sum of its proper divisors (101340632803).

506703163985 is a wasteful number, since it uses less digits than its factorization.

506703163985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101340632802.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 506703163985 in words is "five hundred six billion, seven hundred three million, one hundred sixty-three thousand, nine hundred eighty-five".