66099299 has 8 divisors (see below), whose sum is σ = 77299200. Its totient is φ = 55338696.

The previous prime is 66099287. The next prime is 66099301. The reversal of 66099299 is 99299066.

66099299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66099299 - 2⁴ = 66099283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66099259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109499 + ... + 110100.

It is an arithmetic number, because the mean of its divisors is an integer number (9662400).

Almost surely, 2^66099299 is an apocalyptic number.

66099299 is a deficient number, since it is larger than the sum of its proper divisors (11199901).

66099299 is a wasteful number, since it uses less digits than its factorization.

66099299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219649.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 66099299 is about 8130.1475386367. The cubic root of 66099299 is about 404.3265727740.

The spelling of 66099299 in words is "sixty-six million, ninety-nine thousand, two hundred ninety-nine".