6775566 has 16 divisors (see below), whose sum is σ = 15487104. Its totient is φ = 1935864.

The previous prime is 6775541. The next prime is 6775579. The reversal of 6775566 is 6655776.

6775566 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 161323 = 6775566 / (6 + 7 + 7 + 5 + 5 + 6 + 6).

It is a Curzon number.

It is a nialpdrome in base 14.

It is a congruent number.

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, 80620 + ... + 80703.

It is an arithmetic number, because the mean of its divisors is an integer number (967944).

Almost surely, 2^6775566 is an apocalyptic number.

6775566 is an abundant number, since it is smaller than the sum of its proper divisors (8711538).

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

6775566 is a wasteful number, since it uses less digits than its factorization.

6775566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161335.

The product of its digits is 264600, while the sum is 42.

The square root of 6775566 is about 2602.9917402865. The cubic root of 6775566 is about 189.2264579269.

The spelling of 6775566 in words is "six million, seven hundred seventy-five thousand, five hundred sixty-six".