66096869 has 2 divisors, whose sum is σ = 66096870. Its totient is φ = 66096868.

The previous prime is 66096857. The next prime is 66096881. The reversal of 66096869 is 96869066.

It is a balanced prime because it is at equal distance from previous prime (66096857) and next prime (66096881).

It can be written as a sum of positive squares in only one way, i.e., 39212644 + 26884225 = 6262^2 + 5185^2 .

It is a cyclic number.

It is not a de Polignac number, because 66096869 - 2⁴ = 66096853 is a prime.

It is a super-2 number, since 2×66096869² = 8737592183206322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66096889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33048434 + 33048435.

It is an arithmetic number, because the mean of its divisors is an integer number (33048435).

Almost surely, 2^66096869 is an apocalyptic number.

It is an amenable number.

66096869 is a deficient number, since it is larger than the sum of its proper divisors (1).

66096869 is an equidigital number, since it uses as much as digits as its factorization.

66096869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 66096869 is about 8129.9980934807. The cubic root of 66096869 is about 404.3216179781.

The spelling of 66096869 in words is "sixty-six million, ninety-six thousand, eight hundred sixty-nine".