6511075512 has 16 divisors (see below), whose sum is σ = 16277688840. Its totient is φ = 2170358496.

The previous prime is 6511075507. The next prime is 6511075517. The reversal of 6511075512 is 2155701156.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6511075507) and next prime (6511075517).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6511075517) 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, 135647383 + ... + 135647430.

Almost surely, 2^6511075512 is an apocalyptic number.

It is an amenable number.

6511075512 is an abundant number, since it is smaller than the sum of its proper divisors (9766613328).

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

6511075512 is a wasteful number, since it uses less digits than its factorization.

6511075512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271294822 (or 271294818 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 33.

The square root of 6511075512 is about 80691.2356579077. The cubic root of 6511075512 is about 1867.3149633964.

Adding to 6511075512 its reverse (2155701156), we get a palindrome (8666776668).

The spelling of 6511075512 in words is "six billion, five hundred eleven million, seventy-five thousand, five hundred twelve".