6616069 has 2 divisors, whose sum is σ = 6616070. Its totient is φ = 6616068.

The previous prime is 6616033. The next prime is 6616073. The reversal of 6616069 is 9606166.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6502500 + 113569 = 2550^2 + 337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6616069 is a prime.

It is a super-2 number, since 2×6616069² = 87544738025522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6616469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3308034 + 3308035.

It is an arithmetic number, because the mean of its divisors is an integer number (3308035).

Almost surely, 2^6616069 is an apocalyptic number.

It is an amenable number.

6616069 is a deficient number, since it is larger than the sum of its proper divisors (1).

6616069 is an equidigital number, since it uses as much as digits as its factorization.

6616069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 6616069 is about 2572.1720393473. The cubic root of 6616069 is about 187.7298538138.

The spelling of 6616069 in words is "six million, six hundred sixteen thousand, sixty-nine".