6511235340516 has 24 divisors (see below), whose sum is σ = 15193829095200. Its totient is φ = 2170276546752.

The previous prime is 6511235340487. The next prime is 6511235340521. The reversal of 6511235340516 is 6150435321156.

It is a happy number.

It is a super-2 number, since 2×6511235340516² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16703466 + ... + 17088833.

It is an arithmetic number, because the mean of its divisors is an integer number (633076212300).

Almost surely, 2^{6511235340516} is an apocalyptic number.

It is an amenable number.

6511235340516 is an abundant number, since it is smaller than the sum of its proper divisors (8682593754684).

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

6511235340516 is a wasteful number, since it uses less digits than its factorization.

6511235340516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33808363 (or 33808361 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 6511235340516 in words is "six trillion, five hundred eleven billion, two hundred thirty-five million, three hundred forty thousand, five hundred sixteen".