66343337 has 2 divisors, whose sum is σ = 66343338. Its totient is φ = 66343336.

The previous prime is 66343309. The next prime is 66343351. The reversal of 66343337 is 73334366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36192256 + 30151081 = 6016^2 + 5491^2 .

It is a cyclic number.

It is not a de Polignac number, because 66343337 - 2¹⁶ = 66277801 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66343297 and 66343306.

It is not a weakly prime, because it can be changed into another prime (66343397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33171668 + 33171669.

It is an arithmetic number, because the mean of its divisors is an integer number (33171669).

Almost surely, 2^66343337 is an apocalyptic number.

It is an amenable number.

66343337 is a deficient number, since it is larger than the sum of its proper divisors (1).

66343337 is an equidigital number, since it uses as much as digits as its factorization.

66343337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 35.

The square root of 66343337 is about 8145.1419263264. The cubic root of 66343337 is about 404.8235516490.

The spelling of 66343337 in words is "sixty-six million, three hundred forty-three thousand, three hundred thirty-seven".