6511550012 has 48 divisors (see below), whose sum is σ = 12624595200. Its totient is φ = 2913859200.

The previous prime is 6511550011. The next prime is 6511550039. The reversal of 6511550012 is 2100551156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6511550011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3276083 + ... + 3278069.

It is an arithmetic number, because the mean of its divisors is an integer number (263012400).

Almost surely, 2^6511550012 is an apocalyptic number.

It is an amenable number.

6511550012 is a deficient number, since it is larger than the sum of its proper divisors (6113045188).

6511550012 is a wasteful number, since it uses less digits than its factorization.

6511550012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122 (or 3120 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 6511550012 is about 80694.1758245290. The cubic root of 6511550012 is about 1867.3603230007.

The spelling of 6511550012 in words is "six billion, five hundred eleven million, five hundred fifty thousand, twelve".