6512156712 has 48 divisors (see below), whose sum is σ = 18245272500. Its totient is φ = 2095865856.

The previous prime is 6512156671. The next prime is 6512156719. The reversal of 6512156712 is 2176512156.

6512156712 is a `hidden beast` number, since 65 + 1 + 21 + 567 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6233734116 + 278422596 = 78954^2 + 16686^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6512156719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1557337 + ... + 1561512.

Almost surely, 2^6512156712 is an apocalyptic number.

It is an amenable number.

6512156712 is an abundant number, since it is smaller than the sum of its proper divisors (11733115788).

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

6512156712 is a wasteful number, since it uses less digits than its factorization.

6512156712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118890 (or 3118883 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 6512156712 is about 80697.9349921669. The cubic root of 6512156712 is about 1867.4183169920.

Adding to 6512156712 its reverse (2176512156), we get a palindrome (8688668868).

The spelling of 6512156712 in words is "six billion, five hundred twelve million, one hundred fifty-six thousand, seven hundred twelve".