66047341 has 2 divisors, whose sum is σ = 66047342. Its totient is φ = 66047340.

The previous prime is 66047339. The next prime is 66047353. The reversal of 66047341 is 14374066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51194025 + 14853316 = 7155^2 + 3854^2 .

It is a cyclic number.

It is not a de Polignac number, because 66047341 - 2¹ = 66047339 is a prime.

Together with 66047339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66047041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33023670 + 33023671.

It is an arithmetic number, because the mean of its divisors is an integer number (33023671).

Almost surely, 2^66047341 is an apocalyptic number.

It is an amenable number.

66047341 is a deficient number, since it is larger than the sum of its proper divisors (1).

66047341 is an equidigital number, since it uses as much as digits as its factorization.

66047341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 66047341 is about 8126.9515194813. The cubic root of 66047341 is about 404.2206033850.

The spelling of 66047341 in words is "sixty-six million, forty-seven thousand, three hundred forty-one".