66598113 has 8 divisors (see below), whose sum is σ = 91197568. Its totient is φ = 43198704.

The previous prime is 66598111. The next prime is 66598151. The reversal of 66598113 is 31189566.

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

It is not a de Polignac number, because 66598113 - 2¹ = 66598111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66598111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299881 + ... + 300102.

It is an arithmetic number, because the mean of its divisors is an integer number (11399696).

Almost surely, 2^66598113 is an apocalyptic number.

It is an amenable number.

66598113 is a deficient number, since it is larger than the sum of its proper divisors (24599455).

66598113 is a wasteful number, since it uses less digits than its factorization.

66598113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600023.

The product of its digits is 38880, while the sum is 39.

The square root of 66598113 is about 8160.7666919230. The cubic root of 66598113 is about 405.3410996217.

The spelling of 66598113 in words is "sixty-six million, five hundred ninety-eight thousand, one hundred thirteen".