6506561343 has 8 divisors (see below), whose sum is σ = 9132016000. Its totient is φ = 4109407128.

The previous prime is 6506561311. The next prime is 6506561363. The reversal of 6506561343 is 3431656056.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6506561343 - 2⁵ = 6506561311 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 (6506561363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57075043 + ... + 57075156.

It is an arithmetic number, because the mean of its divisors is an integer number (1141502000).

Almost surely, 2^6506561343 is an apocalyptic number.

6506561343 is a deficient number, since it is larger than the sum of its proper divisors (2625454657).

6506561343 is a wasteful number, since it uses less digits than its factorization.

6506561343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114150221.

The product of its (nonzero) digits is 194400, while the sum is 39.

The square root of 6506561343 is about 80663.2589411065. The cubic root of 6506561343 is about 1866.8833232830.

The spelling of 6506561343 in words is "six billion, five hundred six million, five hundred sixty-one thousand, three hundred forty-three".