6775265664 has 96 divisors (see below), whose sum is σ = 20344287600. Its totient is φ = 2160221184.

The previous prime is 6775265657. The next prime is 6775265699. The reversal of 6775265664 is 4665625776.

6775265664 is a `hidden beast` number, since 6 + 7 + 7 + 526 + 56 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 6775265664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101359 + ... + 154350.

Almost surely, 2^6775265664 is an apocalyptic number.

6775265664 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6775265664 is an abundant number, since it is smaller than the sum of its proper divisors (13569021936).

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

6775265664 is a wasteful number, since it uses less digits than its factorization.

6775265664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255752 (or 255737 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 54.

The square root of 6775265664 is about 82312.0019438235. The cubic root of 6775265664 is about 1892.2366198051.

The spelling of 6775265664 in words is "six billion, seven hundred seventy-five million, two hundred sixty-five thousand, six hundred sixty-four".