66242312313 has 8 divisors (see below), whose sum is σ = 90377108448. Its totient is φ = 43134528864.

The previous prime is 66242312309. The next prime is 66242312327. The reversal of 66242312313 is 31321324266.

It is a happy number.

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

It is not a de Polignac number, because 66242312313 - 2² = 66242312309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66242312333) 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, 256753020 + ... + 256753277.

It is an arithmetic number, because the mean of its divisors is an integer number (11297138556).

Almost surely, 2^66242312313 is an apocalyptic number.

It is an amenable number.

66242312313 is a deficient number, since it is larger than the sum of its proper divisors (24134796135).

66242312313 is a wasteful number, since it uses less digits than its factorization.

66242312313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513506343.

The product of its digits is 31104, while the sum is 33.

Adding to 66242312313 its reverse (31321324266), we get a palindrome (97563636579).

The spelling of 66242312313 in words is "sixty-six billion, two hundred forty-two million, three hundred twelve thousand, three hundred thirteen".