6511706616 has 64 divisors (see below), whose sum is σ = 16359091200. Its totient is φ = 2159958528.

The previous prime is 6511706611. The next prime is 6511706647. The reversal of 6511706616 is 6166071156.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6511706611) 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, 6453120 + ... + 6454128.

It is an arithmetic number, because the mean of its divisors is an integer number (255610800).

Almost surely, 2^6511706616 is an apocalyptic number.

It is an amenable number.

6511706616 is an abundant number, since it is smaller than the sum of its proper divisors (9847384584).

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

6511706616 is a wasteful number, since it uses less digits than its factorization.

6511706616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068 (or 2064 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 6511706616 is about 80695.1461737322. The cubic root of 6511706616 is about 1867.3752930028.

The spelling of 6511706616 in words is "six billion, five hundred eleven million, seven hundred six thousand, six hundred sixteen".