66006299 has 4 divisors (see below), whose sum is σ = 66022560. Its totient is φ = 65990040.

The previous prime is 66006289. The next prime is 66006313. The reversal of 66006299 is 99260066.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66006299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66006289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3614 + ... + 12044.

It is an arithmetic number, because the mean of its divisors is an integer number (16505640).

Almost surely, 2^66006299 is an apocalyptic number.

66006299 is a deficient number, since it is larger than the sum of its proper divisors (16261).

66006299 is an equidigital number, since it uses as much as digits as its factorization.

66006299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16260.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 66006299 is about 8124.4260720373. The cubic root of 66006299 is about 404.1368581032.

The spelling of 66006299 in words is "sixty-six million, six thousand, two hundred ninety-nine".