6580290085 has 4 divisors (see below), whose sum is σ = 7896348108. Its totient is φ = 5264232064.

The previous prime is 6580290071. The next prime is 6580290091. The reversal of 6580290085 is 5800920856.

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 5030923041 + 1549367044 = 70929^2 + 39362^2 .

It is a cyclic number.

It is not a de Polignac number, because 6580290085 - 2¹⁷ = 6580159013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 658029004 + ... + 658029013.

It is an arithmetic number, because the mean of its divisors is an integer number (1974087027).

Almost surely, 2^6580290085 is an apocalyptic number.

It is an amenable number.

6580290085 is a deficient number, since it is larger than the sum of its proper divisors (1316058023).

6580290085 is a wasteful number, since it uses less digits than its factorization.

6580290085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316058022.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 6580290085 is about 81118.9872039833. The cubic root of 6580290085 is about 1873.9083503876.

The spelling of 6580290085 in words is "six billion, five hundred eighty million, two hundred ninety thousand, eighty-five".