6509161296 has 120 divisors (see below), whose sum is σ = 20608826784. Its totient is φ = 1972460160.

The previous prime is 6509161291. The next prime is 6509161319. The reversal of 6509161296 is 6921619056.

It is a happy number.

6509161296 is a `hidden beast` number, since 6 + 509 + 16 + 129 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6509161291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33331 + ... + 118866.

Almost surely, 2^6509161296 is an apocalyptic number.

6509161296 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6509161296 is an abundant number, since it is smaller than the sum of its proper divisors (14099665488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6509161296 is a wasteful number, since it uses less digits than its factorization.

6509161296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152231 (or 152213 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 6509161296 is about 80679.3734234470. The cubic root of 6509161296 is about 1867.1319524372.

The spelling of 6509161296 in words is "six billion, five hundred nine million, one hundred sixty-one thousand, two hundred ninety-six".