6500580957 has 12 divisors (see below), whose sum is σ = 10112015004. Its totient is φ = 4000357440.

The previous prime is 6500580953. The next prime is 6500580971. The reversal of 6500580957 is 7590850056.

6500580957 is a `hidden beast` number, since 6 + 500 + 58 + 0 + 95 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4201762041 + 2298818916 = 64821^2 + 47946^2 .

It is not a de Polignac number, because 6500580957 - 2² = 6500580953 is a prime.

It is a super-2 number, since 2×6500580957² = 84515105557022071698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6500580953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27780144 + ... + 27780377.

It is an arithmetic number, because the mean of its divisors is an integer number (842667917).

Almost surely, 2^6500580957 is an apocalyptic number.

It is an amenable number.

6500580957 is a deficient number, since it is larger than the sum of its proper divisors (3611434047).

6500580957 is a wasteful number, since it uses less digits than its factorization.

6500580957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55560540 (or 55560537 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 6500580957 is about 80626.1803448483. The cubic root of 6500580957 is about 1866.3111774826.

The spelling of 6500580957 in words is "six billion, five hundred million, five hundred eighty thousand, nine hundred fifty-seven".