66821467341 has 8 divisors (see below), whose sum is σ = 92167541280. Its totient is φ = 43011519152.

The previous prime is 66821467303. The next prime is 66821467343. The reversal of 66821467341 is 14376412866.

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

It is a cyclic number.

It is not a de Polignac number, because 66821467341 - 2¹⁷ = 66821336269 is a prime.

It is a super-2 number, since 2×66821467341² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66821467343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384031335 + ... + 384031508.

It is an arithmetic number, because the mean of its divisors is an integer number (11520942660).

Almost surely, 2^66821467341 is an apocalyptic number.

It is an amenable number.

66821467341 is a deficient number, since it is larger than the sum of its proper divisors (25346073939).

66821467341 is a wasteful number, since it uses less digits than its factorization.

66821467341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768062875.

The product of its digits is 1161216, while the sum is 48.

The spelling of 66821467341 in words is "sixty-six billion, eight hundred twenty-one million, four hundred sixty-seven thousand, three hundred forty-one".