66361283 has 2 divisors, whose sum is σ = 66361284. Its totient is φ = 66361282.

The previous prime is 66361249. The next prime is 66361301. The reversal of 66361283 is 38216366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66361283 - 2¹⁸ = 66099139 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (66361213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33180641 + 33180642.

It is an arithmetic number, because the mean of its divisors is an integer number (33180642).

Almost surely, 2^66361283 is an apocalyptic number.

66361283 is a deficient number, since it is larger than the sum of its proper divisors (1).

66361283 is an equidigital number, since it uses as much as digits as its factorization.

66361283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 66361283 is about 8146.2434901002. The cubic root of 66361283 is about 404.8600502074.

The spelling of 66361283 in words is "sixty-six million, three hundred sixty-one thousand, two hundred eighty-three".