66823389241 has 12 divisors (see below), whose sum is σ = 76619915328. Its totient is φ = 57090056472.

The previous prime is 66823389187. The next prime is 66823389247. The reversal of 66823389241 is 14298332866.

66823389241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66823389241 - 2¹¹ = 66823387193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66823389247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609100 + ... + 710386.

It is an arithmetic number, because the mean of its divisors is an integer number (6384992944).

Almost surely, 2^66823389241 is an apocalyptic number.

It is an amenable number.

66823389241 is a deficient number, since it is larger than the sum of its proper divisors (9796526087).

66823389241 is an equidigital number, since it uses as much as digits as its factorization.

66823389241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101908 (or 101601 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The spelling of 66823389241 in words is "sixty-six billion, eight hundred twenty-three million, three hundred eighty-nine thousand, two hundred forty-one".