66283699 has 2 divisors, whose sum is σ = 66283700. Its totient is φ = 66283698.

The previous prime is 66283691. The next prime is 66283709. The reversal of 66283699 is 99638266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66283699 - 2³ = 66283691 is a prime.

It is not a weakly prime, because it can be changed into another prime (66283691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33141849 + 33141850.

It is an arithmetic number, because the mean of its divisors is an integer number (33141850).

Almost surely, 2^66283699 is an apocalyptic number.

66283699 is a deficient number, since it is larger than the sum of its proper divisors (1).

66283699 is an equidigital number, since it uses as much as digits as its factorization.

66283699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 49.

The square root of 66283699 is about 8141.4801479829. The cubic root of 66283699 is about 404.7022126372.

The spelling of 66283699 in words is "sixty-six million, two hundred eighty-three thousand, six hundred ninety-nine".