66098313 has 6 divisors (see below), whose sum is σ = 95475354. Its totient is φ = 44065536.

The previous prime is 66098303. The next prime is 66098327. The reversal of 66098313 is 31389066.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38975049 + 27123264 = 6243^2 + 5208^2 .

It is not a de Polignac number, because 66098313 - 2¹³ = 66090121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66098303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3672120 + ... + 3672137.

It is an arithmetic number, because the mean of its divisors is an integer number (15912559).

Almost surely, 2^66098313 is an apocalyptic number.

It is an amenable number.

66098313 is a deficient number, since it is larger than the sum of its proper divisors (29377041).

66098313 is a wasteful number, since it uses less digits than its factorization.

66098313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7344263 (or 7344260 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 66098313 is about 8130.0868999046. The cubic root of 66098313 is about 404.3245623241.

The spelling of 66098313 in words is "sixty-six million, ninety-eight thousand, three hundred thirteen".