6580650613 has 4 divisors (see below), whose sum is σ = 6581733228. Its totient is φ = 6579568000.

The previous prime is 6580650611. The next prime is 6580650619. The reversal of 6580650613 is 3160560856.

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 3940951729 + 2639698884 = 62777^2 + 51378^2 .

It is a cyclic number.

It is not a de Polignac number, because 6580650613 - 2¹ = 6580650611 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 (6580650611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532138 + ... + 544363.

It is an arithmetic number, because the mean of its divisors is an integer number (1645433307).

Almost surely, 2^6580650613 is an apocalyptic number.

It is an amenable number.

6580650613 is a deficient number, since it is larger than the sum of its proper divisors (1082615).

6580650613 is a wasteful number, since it uses less digits than its factorization.

6580650613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082614.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 6580650613 is about 81121.2093906396. The cubic root of 6580650613 is about 1873.9425729970.

The spelling of 6580650613 in words is "six billion, five hundred eighty million, six hundred fifty thousand, six hundred thirteen".