66841359 has 12 divisors (see below), whose sum is σ = 96505416. Its totient is φ = 41132832.

The previous prime is 66841349. The next prime is 66841361. The reversal of 66841359 is 95314866.

It is not a de Polignac number, because 66841359 - 2⁹ = 66840847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66841359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66841319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65412 + ... + 66425.

It is an arithmetic number, because the mean of its divisors is an integer number (8042118).

Almost surely, 2^66841359 is an apocalyptic number.

66841359 is a deficient number, since it is larger than the sum of its proper divisors (29664057).

66841359 is a wasteful number, since it uses less digits than its factorization.

66841359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131866 (or 131853 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 66841359 is about 8175.6564874021. The cubic root of 66841359 is about 405.8339954855.

The spelling of 66841359 in words is "sixty-six million, eight hundred forty-one thousand, three hundred fifty-nine".