66346337 has 2 divisors, whose sum is σ = 66346338. Its totient is φ = 66346336.

The previous prime is 66346327. The next prime is 66346339. The reversal of 66346337 is 73364366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64144081 + 2202256 = 8009^2 + 1484^2 .

66346337 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 66346337 - 2⁴ = 66346321 is a prime.

Together with 66346339, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3915488 and since 66346337 and 3915488 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66346337.

It is not a weakly prime, because it can be changed into another prime (66346339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33173168 + 33173169.

It is an arithmetic number, because the mean of its divisors is an integer number (33173169).

Almost surely, 2^66346337 is an apocalyptic number.

It is an amenable number.

66346337 is a deficient number, since it is larger than the sum of its proper divisors (1).

66346337 is an equidigital number, since it uses as much as digits as its factorization.

66346337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 38.

The square root of 66346337 is about 8145.3260830982. The cubic root of 66346337 is about 404.8296535044.

The spelling of 66346337 in words is "sixty-six million, three hundred forty-six thousand, three hundred thirty-seven".