6516260345 has 24 divisors (see below), whose sum is σ = 9179656200. Its totient is φ = 4427281152.

The previous prime is 6516260323. The next prime is 6516260389. The reversal of 6516260345 is 5430626156.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 61905424 + 6454354921 = 7868^2 + 80339^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6516260345 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6516260299 and 6516260308.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95300 + ... + 148709.

It is an arithmetic number, because the mean of its divisors is an integer number (382485675).

Almost surely, 2^6516260345 is an apocalyptic number.

It is an amenable number.

6516260345 is a deficient number, since it is larger than the sum of its proper divisors (2663395855).

6516260345 is a wasteful number, since it uses less digits than its factorization.

6516260345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244137 (or 244130 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 6516260345 is about 80723.3568739556. The cubic root of 6516260345 is about 1867.8104856021.

The spelling of 6516260345 in words is "six billion, five hundred sixteen million, two hundred sixty thousand, three hundred forty-five".