66703230241 has 4 divisors (see below), whose sum is σ = 66744229552. Its totient is φ = 66662230932.

The previous prime is 66703230229. The next prime is 66703230247. The reversal of 66703230241 is 14203230766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66703230241 - 2¹³ = 66703222049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66703230197 and 66703230206.

It is not an unprimeable number, because it can be changed into a prime (66703230247) 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, 20497215 + ... + 20500468.

It is an arithmetic number, because the mean of its divisors is an integer number (16686057388).

Almost surely, 2^66703230241 is an apocalyptic number.

It is an amenable number.

66703230241 is a deficient number, since it is larger than the sum of its proper divisors (40999311).

66703230241 is a wasteful number, since it uses less digits than its factorization.

66703230241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40999310.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 66703230241 in words is "sixty-six billion, seven hundred three million, two hundred thirty thousand, two hundred forty-one".