6656069 has 4 divisors (see below), whose sum is σ = 7606944. Its totient is φ = 5705196.

The previous prime is 6656059. The next prime is 6656071. The reversal of 6656069 is 9606566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9606566 = 2 ⋅4803283.

It is not a de Polignac number, because 6656069 - 2¹⁶ = 6590533 is a prime.

It is a super-2 number, since 2×6656069² = 88606509065522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475427 + ... + 475440.

It is an arithmetic number, because the mean of its divisors is an integer number (1901736).

Almost surely, 2^6656069 is an apocalyptic number.

It is an amenable number.

6656069 is a deficient number, since it is larger than the sum of its proper divisors (950875).

6656069 is an equidigital number, since it uses as much as digits as its factorization.

6656069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950874.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 6656069 is about 2579.9358519157. The cubic root of 6656069 is about 188.1074250238.

The spelling of 6656069 in words is "six million, six hundred fifty-six thousand, sixty-nine".